Citazione Stile APA (7a Edizione)

Gorman, G. E., & Mills, J. J. (1992). Guide to current indexing and abstracting services in the third world. Hans Zell Pub.

Citazione stile Chigago Style (17a edizione)

Gorman, Gary E., e J. J. Mills. Guide to Current Indexing and Abstracting Services in the Third World. London: Hans Zell Pub, 1992.

Citatione MLA (9a ed.)

Gorman, Gary E., e J. J. Mills. Guide to Current Indexing and Abstracting Services in the Third World. Hans Zell Pub, 1992.