APA (7th ed.) Citation

Wellisch, H. (1971). Documentation-in-Source for Library and Information Science.

Chicago Style (17th ed.) Citation

Wellisch, Hans. Documentation-in-Source for Library and Information Science. 1971.

MLA (9th ed.) Citation

Wellisch, Hans. Documentation-in-Source for Library and Information Science. 1971.

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