APA (7th ed.) Citation

Sheehy, E. P. (1976). Guide to reference books (9. ed., rev., expanded and updated version of the 8. ed.). American Library Ass.

Chicago Style (17th ed.) Citation

Sheehy, Eugene P. Guide to Reference Books. 9. ed., rev., expanded and updated version of the 8. ed. Chicago: American Library Ass, 1976.

MLA (9th ed.) Citation

Sheehy, Eugene P. Guide to Reference Books. 9. ed., rev., expanded and updated version of the 8. ed. American Library Ass, 1976.