Παραπομπή APA

Friedberg, M. P. (1975). Handcrafted playgrounds: Designs you can built yourself. New York: Random House.

Παραπομπή Chicago Style

Friedberg, M. Paul. Handcrafted Playgrounds: Designs You Can Built Yourself. New York: Random House, 1975.

Παραπομπή MLA

Friedberg, M. Paul. Handcrafted Playgrounds: Designs You Can Built Yourself. New York: Random House, 1975.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.