APA (7 ম সংস্করণ) উদ্ধৃতি

Esbensen, S. B. (1987). An outdoor classroom: The early childhood program. High/Scope Press.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Esbensen, Steen B. An Outdoor Classroom: The Early Childhood Program. Ypsilanti, Mich: High/Scope Press, 1987.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Esbensen, Steen B. An Outdoor Classroom: The Early Childhood Program. High/Scope Press, 1987.