Cita APA (7a ed.)

Imhoff, K., & Brandwein, L. (1977). Labor Collections and Services in Public Libraries throughout the United States, 1976.

Cita Chicago Style (17a ed.)

Imhoff, Kathleen, y Larry Brandwein. Labor Collections and Services in Public Libraries Throughout the United States, 1976. 1977.

Cita MLA (9a ed.)

Imhoff, Kathleen, y Larry Brandwein. Labor Collections and Services in Public Libraries Throughout the United States, 1976. 1977.