APA (7th ed.) Citation

American Society for Indexing, Zafran, E. L., & Shapiro, J. (2009). Starting an indexing business (4th ed.). American Society for Indexing, Inc.

Chicago Style (17th ed.) Citation

American Society for Indexing, Enid L. Zafran, and Joan Shapiro. Starting an Indexing Business. 4th ed. Medford, N.J: American Society for Indexing, Inc, 2009.

MLA (9th ed.) Citation

American Society for Indexing, et al. Starting an Indexing Business. 4th ed. American Society for Indexing, Inc, 2009.