Cita APA (7th ed.)

Goodman, N. (1972). Problems and projects. Bobbs-Merrill.

Cita Chicago (17th ed.)

Goodman, Nelson. Problems and Projects. Indianapolis: Bobbs-Merrill, 1972.

Cita MLA (9th ed.)

Goodman, Nelson. Problems and Projects. Bobbs-Merrill, 1972.