Gaya APA

Valk, A, V, D. (2009). Forest Ecology: Recent Advances in Plant Ecology . New York: Springer Science+Business Media, B.V..

Gaya MLA

Valk, A.G., Van, Der. "Forest Ecology: Recent Advances in Plant Ecology". New York: Springer Science+Business Media, B.V., 2009. e-book.