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.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.