APA

Kramp P. L., . (1961). Synopsis of the medusae of the world. New York: Cambridge University.

Chicago

Kramp P L, . 1961. Synopsis of the medusae of the world. New York: Cambridge University.

Harvard

Kramp P. L., . (1961). Synopsis of the medusae of the world. New York: Cambridge University.

MLA

Kramp P L, . Synopsis of the medusae of the world. New York: Cambridge University. 1961.