Cita APA (7a ed.)

Haggard, H. W. (1962). The doctor in history. Barnes & Noble.

Cita Chicago Style (17a ed.)

Haggard, Howard Wilcox. The Doctor in History. New York: Barnes & Noble, 1962.

Cita MLA (9a ed.)

Haggard, Howard Wilcox. The Doctor in History. Barnes & Noble, 1962.