Cita APA (7th ed.)

Boas, R. P., & Boas, H. P. (1996). A primer of real functions (4th ed.). Mathematical Association of America.

Cita Chicago (17th ed.)

Boas, Ralph P., i Harold P. Boas. A Primer of Real Functions. 4th ed. [Washington, D.C.]: Mathematical Association of America, 1996.

Cita MLA (9th ed.)

Boas, Ralph P., i Harold P. Boas. A Primer of Real Functions. 4th ed. Mathematical Association of America, 1996.