Dyfyniad APA

International Seminar on Approval and Gathering Plans in Large and Medium Size Academic Libraries, 3rd., West Palm Beach, Fla., 1971, Spyers-Duran, P., & Gore, D. (1972). Economics of approval plans: Proceedings. Greenwood Press.

Dyfyniad Arddull Chicago

International Seminar on Approval and Gathering Plans in Large and Medium Size Academic Libraries, 3rd., West Palm Beach, Fla., 1971, Peter Spyers-Duran, and Daniel Gore. Economics of Approval Plans: Proceedings. Westport, Conn: Greenwood Press, 1972.

Dyfyniad MLA

International Seminar on Approval and Gathering Plans in Large and Medium Size Academic Libraries, 3rd., West Palm Beach, Fla., 1971, et al. Economics of Approval Plans: Proceedings. Greenwood Press, 1972.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.