Armstrong, H. J. (1977). Criteria for the selection of maps for a basic college map collection including an annoted carto-bibliography.
Chicago-Zitierstil (17. Ausg.)Armstrong, Helen Jane. Criteria for the Selection of Maps for a Basic College Map Collection Including an Annoted Carto-bibliography. 1977.
MLA-Zitierstil (9. Ausg.)Armstrong, Helen Jane. Criteria for the Selection of Maps for a Basic College Map Collection Including an Annoted Carto-bibliography. 1977.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.