APA

Nyland R. D., . (2002). Silviculture. New York: McGraw-Hill.

Chicago

Nyland Ralph D, . 2002. Silviculture. New York: McGraw-Hill.

Harvard

Nyland R. D., . (2002). Silviculture. New York: McGraw-Hill.

MLA

Nyland Ralph D, . Silviculture. New York: McGraw-Hill. 2002.