Παραπομπή APA

Allen, S. W. (1960). An introduction to American Forestry. McGrae-Hill Book company, Inc..

Παραπομπή Chicago Style

Allen, Shirley Walter. An Introduction to American Forestry. New York: McGrae-Hill Book company, Inc., 1960.

Παραπομπή MLA

Allen, Shirley Walter. An Introduction to American Forestry. McGrae-Hill Book company, Inc., 1960.