Cita APA (7th ed.)

CHRISTENSON, C. O. (1977). Aspects of topology. Marcel Dekker.

Cita Chicago (17th ed.)

CHRISTENSON, Charles O. Aspects of Topology. New York: Marcel Dekker, 1977.

Cita MLA (9th ed.)

CHRISTENSON, Charles O. Aspects of Topology. Marcel Dekker, 1977.