APA

Harvey E. N. B., . (1956). The American Arbacia and other sea urchins. Princeton: Princeton University Press.

Chicago

Harvey Ethel Nicholson Browne, . 1956. The American Arbacia and other sea urchins. Princeton: Princeton University Press.

Harvard

Harvey E. N. B., . (1956). The American Arbacia and other sea urchins. Princeton: Princeton University Press.

MLA

Harvey Ethel Nicholson Browne, . The American Arbacia and other sea urchins. Princeton: Princeton University Press. 1956.