APA (7th ed.) Citation

Azubuike, A. A., & Greaves, M. A. (1989). The Reference Services of a Research Library.

Chicago Style (17th ed.) Citation

Azubuike, Abraham A., and Monica A. Greaves. The Reference Services of a Research Library. 1989.

MLA (9th ed.) Citation

Azubuike, Abraham A., and Monica A. Greaves. The Reference Services of a Research Library. 1989.

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