Cita APA

Selby, P. H., & Frederick, D. D. (1969). Basic Algebra I: Principles and Practice. New York: New Century Programs.

Citación estilo Chicago

Selby, Peter H., y Donald D. Frederick. Basic Algebra I: Principles and Practice. New York: New Century Programs, 1969.

Cita MLA

Selby, Peter H., y Donald D. Frederick. Basic Algebra I: Principles and Practice. New York: New Century Programs, 1969.