Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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