Παραπομπή APA

(1968). Educational specifications and user requirements for elementary (K-6) schools. Toronto: Ryerson Press.

Παραπομπή Chicago Style

Educational Specifications and User Requirements for Elementary (K-6) Schools. Toronto: Ryerson Press, 1968.

Παραπομπή MLA

Educational Specifications and User Requirements for Elementary (K-6) Schools. Toronto: Ryerson Press, 1968.

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