APA

Gilbert P. T., . (1938). Three new trematodes from the Galapagos Marine Iguana, Amblyrhynchus cristatus. Los Angeles, C.A: The University of Southern California Press.

Chicago

Gilbert Paul T, . 1938. Three new trematodes from the Galapagos Marine Iguana, Amblyrhynchus cristatus. Los Angeles, C.A: The University of Southern California Press.

Harvard

Gilbert P. T., . (1938). Three new trematodes from the Galapagos Marine Iguana, Amblyrhynchus cristatus. Los Angeles, C.A: The University of Southern California Press.

MLA

Gilbert Paul T, . Three new trematodes from the Galapagos Marine Iguana, Amblyrhynchus cristatus. Los Angeles, C.A: The University of Southern California Press. 1938.