APA-viite (7. p.)

Freysen, A. H. J. (1978). Structure and functioning of plant populations. North-Holland Publishing.

Chicago-viite (17. p.)

Freysen, A. H. J. Structure and Functioning of Plant Populations. Amsterdam: North-Holland Publishing, 1978.

MLA-viite (9. p.)

Freysen, A. H. J. Structure and Functioning of Plant Populations. North-Holland Publishing, 1978.