Dyfyniad APA

O'Riordan, T. (1995). Environmental science for environmental management. Harlow, Essex : Longman.

Dyfyniad Arddull Chicago

O'Riordan, Timothy. Environmental Science for Environmental Management. Harlow, Essex : Longman, 1995.

Dyfyniad MLA

O'Riordan, Timothy. Environmental Science for Environmental Management. Harlow, Essex : Longman, 1995.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.