Cita APA (7th ed.)

Osgood, W. F. (1938). Functions of real variables. Hafner.

Cita Chicago (17th ed.)

Osgood, William Fogg. Functions of Real Variables. New York: Hafner, 1938.

Cita MLA (9th ed.)

Osgood, William Fogg. Functions of Real Variables. Hafner, 1938.