APA

Pyle L., . (1964). The pill and birth regulation. Baltimore: Helicon Press.

Chicago

Pyle Leo, . 1964. The pill and birth regulation. Baltimore: Helicon Press.

Harvard

Pyle L., . (1964). The pill and birth regulation. Baltimore: Helicon Press.

MLA

Pyle Leo, . The pill and birth regulation. Baltimore: Helicon Press. 1964.