APA (7e ed.) Bronvermelding

Schopmeyer, C. S. (1974). Seeds of woody plants in the United States. Forest Service.

Chicago (17e ed.) Bronvermelding

Schopmeyer, C. S. Seeds of Woody Plants in the United States. Washington, D.C: Forest Service, 1974.

MLA (9e ed.) Bronvermelding

Schopmeyer, C. S. Seeds of Woody Plants in the United States. Forest Service, 1974.