Cita APA

Collison Robert L. (1961). Bibliographical services throughout the world 1950-59.

Chicago Edition Citation

Collison Robert L. Bibliographical Services Throughout the World 1950-59. 1961.

Cita MLA

Collison Robert L. Bibliographical Services Throughout the World 1950-59. 1961.

Atenció: Aquestes cites poden no estar 100% correctes.