APA (7e ed.) Bronvermelding

Hansbrough, J. R. (1936). The Tympanis canker of red pine. Yale University.

Chicago (17e ed.) Bronvermelding

Hansbrough, John Raymond. The Tympanis Canker of Red Pine. New Heaven: Yale University, 1936.

MLA (9e ed.) Bronvermelding

Hansbrough, John Raymond. The Tympanis Canker of Red Pine. Yale University, 1936.