APA (7e ed.) Bronvermelding

Heiser, J., & Hakansson, H. (2003). Henrik Hakansson: An introduction to the birds.

Chicago (17e ed.) Bronvermelding

Heiser, Jörg, en Henrik Hakansson. Henrik Hakansson: An Introduction to the Birds. Amsterdam [u.a.], 2003.

MLA (8e ed.) Bronvermelding

Heiser, Jörg, en Henrik Hakansson. Henrik Hakansson: An Introduction to the Birds. 2003.