APA (7th ed.) Citation

Yen, S. S. C. (1978). Question and Answer Guide to OCLC.

Chicago Style (17th ed.) Citation

Yen, Sidney S. C. Question and Answer Guide to OCLC. 1978.

MLA (9th ed.) Citation

Yen, Sidney S. C. Question and Answer Guide to OCLC. 1978.

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