Gaya APA

MIDDLETON, A, L, A, [., PERRINS, C, M, [. (1985). THE ENCYCLOPEDIA of birds . Oxford: Equinox.

Gaya MLA

MIDDLETON, Alex, L, A, [ed.]., PERRINS, Christoper, M, [ed.]. "THE ENCYCLOPEDIA of birds". Oxford: Equinox, 1985. Text.