Specht, David T.. "Seasonal variation of algal biomass production potential and nutrient limitation in Yaquina Bay, Oregon." In Biostimulation and Nutrient Assessment Symposium. , edited by E. J. Middlebrooks, D. H. Falkenborg and T. E. Maloney, p.149-174.  Logan, Utah:  Utah State University, 1975.

Specht, David T.. The use of standardized marine algal bioassays for nutrient assessment of Oregon coastal estuaries In The Proceedings of the Fourth Annual Technical Conference on Estuaries of the Pacific Northwest. Vol. no.60. Circular (Oregon State University. Engineering Experiment Station) no.60. Corvallis, OR: Oregon State University Engineering Experiment Station, 1974.

Specht, David T.. "Seasonal variation of algal biomass production potential and nutrient limitation in Yaquina Bay, Oregon." In Biostimulation and Nutrient Assessment Symposium, edited by E. J. Middlebrooks, D. H. Falkenborg and T. E. Maloney, p.149-174. Ann Arbor, Mi: Ann Arbor Science, 1970.