Cita APA (7th ed.)

Nadler, L., & Nadler, Z. (1977). The conference book. Gulf Pub.

Cita Chicago (17th ed.)

Nadler, Leonard, i Zeace Nadler. The Conference Book. Houston, Tex: Gulf Pub, 1977.

Cita MLA (9th ed.)

Nadler, Leonard, i Zeace Nadler. The Conference Book. Gulf Pub, 1977.