Gibson, M. J. (1972). United States of America National Bibliographical Services and Related Activities in 1972.
Chicago-Zitierstil (17. Ausg.)Gibson, Mary Jane. United States of America National Bibliographical Services and Related Activities in 1972. 1972.
MLA-Zitierstil (9. Ausg.)Gibson, Mary Jane. United States of America National Bibliographical Services and Related Activities in 1972. 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.