Παραπομπή APA

Florkin, M., & Scheer, B. T. Chemical zoology: :(Vol.4) Annelida, Echiura and sipuncula.

Παραπομπή Chicago Style

Florkin, Marcel, και Bradley T. Scheer. Chemical Zoology: :(Vol.4) Annelida, Echiura and Sipuncula.

Παραπομπή MLA

Florkin, Marcel, και Bradley T. Scheer. Chemical Zoology: :(Vol.4) Annelida, Echiura and Sipuncula.