Sisson, E. A. (1982). Nature with children of all ages: Activities & adventures for exploring, learning, & enjoying the world around us. Prentice-Hall.
Chicago-Zitierstil (17. Ausg.)Sisson, Edith A. Nature with Children of All Ages: Activities & Adventures for Exploring, Learning, & Enjoying the World Around Us. Englewood Cliffs, N.J: Prentice-Hall, 1982.
MLA-Zitierstil (9. Ausg.)Sisson, Edith A. Nature with Children of All Ages: Activities & Adventures for Exploring, Learning, & Enjoying the World Around Us. Prentice-Hall, 1982.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.