Crocicchia, G. A. (1971). Outdoor education: A descriptive survey of programs and trends for elementary schools in the state of Maryland.
Chicago-Zitierstil (17. Ausg.)Crocicchia, George Anthony. Outdoor Education: A Descriptive Survey of Programs and Trends for Elementary Schools in the State of Maryland. 1971.
MLA-Zitierstil (9. Ausg.)Crocicchia, George Anthony. Outdoor Education: A Descriptive Survey of Programs and Trends for Elementary Schools in the State of Maryland. 1971.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.