Cita APA (7a ed.)

PETTOFREZZO, A. J. (1969). Number systems ; structure and: Properties. Scott, Foresman.

Cita Chicago Style (17a ed.)

PETTOFREZZO, Anthony J. Number Systems ; Structure and: Properties. Glenview, Ill: Scott, Foresman, 1969.

Cita MLA (9a ed.)

PETTOFREZZO, Anthony J. Number Systems ; Structure and: Properties. Scott, Foresman, 1969.