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Tollefson, Roger, and Oregon. Fish Commission,. Pacific Oyster Seed In Shellfish Investigation Progress Report. Vol. no.4., 1947.
→ ir.library.oregonstate.edu/concern/technical_reports/zc77sq87k
Tollefson, Roger, Lowell D. Marriage, and Oregon. Fish Commission. Ghost shrimp, weights of crabs –- Oregon landings, souvenir crabs In Shellfish Investigation Progress Report. Vol. no.16., 1949.
→ ir.library.oregonstate.edu/concern/technical_reports/1544bq05s
Tollefson, Roger, and Oregon. Fish Commission,. Proposed regulations of the clam fishery of the State of Oregon In Shellfish Investigation Progress Report. Vol. no.11-A. Fish Commission of Oregon,, 1948.
→ ir.library.oregonstate.edu/concern/technical_reports/2v23vv147
Tollefson, Roger, Lowell D. Marriage, and Oregon. Fish Commission. Shellfish Program. Investigation of proposed log boom on Yaquina River In Oregon Fish Commission. Shellfish Program Special Report. Vol. no.9., 1949.
→ ir.library.oregonstate.edu/concern/technical_reports/sn009z526
Tollefson, Roger, and Oregon. Fish Commission. The Yaquina Bay clam fishery: preliminary report In Shellfish zInvestigation Progress Report. Vol. no.2., 1947.
→ ir.library.oregonstate.edu/concern/technical_reports/8c97kq88b
Tollefson, Roger, and Oregon. Fish Commission. Shellfish Program. Report on public hearing on Yaquina River, Oregon in respect to flood control : held at Toledo, Oregon - June 3, 1948 under auspices of Department of Army, Corps of Engineers In Oregon Fish Commission. Shellfish Program Special Report. Vol. no.2., 1948.
→ ir.library.oregonstate.edu/concern/technical_reports/z603qz17c
Tollefson, Roger, Lowell D. Marriage, Donald Twahy, Stanley Wilkes, Charles Woelke, and Oregon. Fish Commission. Observations on horseclams of the 1949-50 set in Yaquina Bay In Shellfish Investigation Progress Report. Vol. no.21., 1950.
→ ir.library.oregonstate.edu/concern/technical_reports/2b88qd055
Tollefson, Roger. "Present state of bay clams in Oregon." Research Briefs. Fish Commission of Oregon 1 (1948): p.3-9.
→ ir.library.oregonstate.edu/concern/technical_reports/3f462600t
Tollefson, Roger, Lowell D. Marriage, and Oregon. Fish Commission. Crab fishery and soft-shell status – Area II: South of Cascade Head, July 31-August 6, 1948 In Shellfish Investigation Progress Report. Vol. no.12., 1948.
→ ir.library.oregonstate.edu/concern/technical_reports/x346d508p