APA (7. basım) Alıntı

RICHARDS, R. (1991). An Early Start To The Environment. Simon & Schuster.

Chicago Style (17. basım) Atıf

RICHARDS, Roy. An Early Start To The Environment. Simon & Schuster, 1991.

MLA (8th ed.) Atıf

RICHARDS, Roy. An Early Start To The Environment. Simon & Schuster, 1991.