APA (7th ed.) Citation

Larson, R. R. (1991). The Decline of Subject Searching: Long-Term Trends and Patterns of Index Use in an Online Catalog.

Chicago Style (17th ed.) Citation

Larson, Ray R. The Decline of Subject Searching: Long-Term Trends and Patterns of Index Use in an Online Catalog. 1991.

MLA (9th ed.) Citation

Larson, Ray R. The Decline of Subject Searching: Long-Term Trends and Patterns of Index Use in an Online Catalog. 1991.

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