APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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