Cita APA (7a ed.)

Kooloos, J. G. M. (1986). Integration of feeding mechanisms in some Anseriform birds. s.n..

Cita Chicago Style (17a ed.)

Kooloos, Johannes Gijsberthus Maria. Integration of Feeding Mechanisms in Some Anseriform Birds. [Leiden?, Netherlands: s.n., 1986.

Cita MLA (8a ed.)

Kooloos, Johannes Gijsberthus Maria. Integration of Feeding Mechanisms in Some Anseriform Birds. s.n., 1986.