APA (7th ed.) Citation

Ederer, W. (1993). Publishers' international ISBN directory. 1993/94. Vol. 1. Geographical section (20th ed.). K. G. Saur.

Chicago Style (17th ed.) Citation

Ederer, Walter. Publishers' International ISBN Directory. 1993/94. Vol. 1. Geographical Section. 20th ed. München: K. G. Saur, 1993.

MLA (9th ed.) Citation

Ederer, Walter. Publishers' International ISBN Directory. 1993/94. Vol. 1. Geographical Section. 20th ed. K. G. Saur, 1993.

Warning: These citations may not always be 100% accurate.