APA

Riggs D. E., Sabine G. A., . (1988). Libraries in the '90s: what the leaders expect. New York: Oryx Press.

Chicago

Riggs Donald E, Sabine Gordon A, . 1988. Libraries in the '90s: what the leaders expect. New York: Oryx Press.

Harvard

Riggs D. E., Sabine G. A., . (1988). Libraries in the '90s: what the leaders expect. New York: Oryx Press.

MLA

Riggs Donald E, Sabine Gordon A, . Libraries in the '90s: what the leaders expect. New York: Oryx Press. 1988.