APA-viite

Bertsch, H., & Johnson, S. (1982). Comparative Opisthobranch (Mollusca: Gastropoda) Zoogeography, With Emphasis on the Pacific Basin (Hawaii and California): Faunal Composition, Provincial Affinities, and Subtidal Density. Iniversidad Autónoma de Baja California.

Chicago-tyylinen lähdeviittaus

Bertsch, H., ja S. Johnson. Comparative Opisthobranch (Mollusca: Gastropoda) Zoogeography, With Emphasis On the Pacific Basin (Hawaii and California): Faunal Composition, Provincial Affinities, and Subtidal Density. Iniversidad Autónoma de Baja California, 1982.

MLA-viite

Bertsch, H., ja S. Johnson. Comparative Opisthobranch (Mollusca: Gastropoda) Zoogeography, With Emphasis On the Pacific Basin (Hawaii and California): Faunal Composition, Provincial Affinities, and Subtidal Density. Iniversidad Autónoma de Baja California, 1982.

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