Geography III [preface on "First Lessons in Geography"]
MLA
Bishop, Elizabeth, 1911-1979. Geography III [preface on "First Lessons in Geography"]. 1976. https://collections.library.yale.edu/catalog/2000599.
APA, 6th edition
Bishop, Elizabeth, 1911-1979. (1976)[Geography III [preface on "First Lessons in Geography"]]. https://collections.library.yale.edu/catalog/2000599.