APA-viite

MACKENZIE A & BALL A S & VIRDEE S R. (1999). INSTANT NOTES IN ECOLOGY. VIVA BOOKS PVT LTD.

Chicago-tyylinen lähdeviittaus

MACKENZIE A & BALL A S & VIRDEE S R. INSTANT NOTES IN ECOLOGY. NEW DELHI: VIVA BOOKS PVT LTD, 1999.

MLA-viite

MACKENZIE A & BALL A S & VIRDEE S R. INSTANT NOTES IN ECOLOGY. VIVA BOOKS PVT LTD, 1999.