Cita APA (7a ed.)

(1934). New sponges from the Puerto Rican deep. Smithsonian Institution.

Cita Chicago Style (17a ed.)

New Sponges from the Puerto Rican Deep. Washington: Smithsonian Institution, 1934.

Cita MLA (9a ed.)

New Sponges from the Puerto Rican Deep. Smithsonian Institution, 1934.