Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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