Link, M. (1981). Outdoor education: A manual for teaching in nature's classroom. Prentice-Hall.
Citazione stile Chigago Style (17a edizione)Link, Michael. Outdoor Education: A Manual for Teaching in Nature's Classroom. Englewood Cliffs, N.J: Prentice-Hall, 1981.
Citatione MLA (9a ed.)Link, Michael. Outdoor Education: A Manual for Teaching in Nature's Classroom. Prentice-Hall, 1981.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.