APA
Trevor I. Williams, . (1957). Endeavour. New York: The Rockefeller University Press.
Chicago
Trevor I. Williams, . 1957. Endeavour. New York: The Rockefeller University Press.
Harvard
Trevor I. Williams, . (1957). Endeavour. New York: The Rockefeller University Press.
MLA
Trevor I. Williams, . Endeavour. New York: The Rockefeller University Press. 1957.