APA Style

Allen, John. (1990). Environment 90/91 . Sluice Dock: THE DUSHKIN PUBLISHING.

Chicago Style

Allen, John. Environment 90/91. Sluice Dock: THE DUSHKIN PUBLISHING, 1990. .

MLA Style

Allen, John. Environment 90/91. Sluice Dock: THE DUSHKIN PUBLISHING, 1990. .

Turabian Style

Allen, John. Environment 90/91. Sluice Dock: THE DUSHKIN PUBLISHING, 1990. .