Johns, G. (1970). Literature of time in the Ernst Zinner Collection San Diego State College Library: A checklist. Sciences and Engineering Library.
Chicago-Zitierstil (17. Ausg.)Johns, Gerald. Literature of Time in the Ernst Zinner Collection San Diego State College Library: A Checklist. San Diego: Sciences and Engineering Library, 1970.
MLA-Zitierstil (9. Ausg.)Johns, Gerald. Literature of Time in the Ernst Zinner Collection San Diego State College Library: A Checklist. Sciences and Engineering Library, 1970.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.