APA (7 ম সংস্করণ) উদ্ধৃতি

Ruskin, R. S. (1974). The personalized system of instruction: An educational alternative. Americam Association for Higher Education.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Ruskin, Robert S. The Personalized System of Instruction: An Educational Alternative. Washington, D.C.: Americam Association for Higher Education, 1974.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Ruskin, Robert S. The Personalized System of Instruction: An Educational Alternative. Americam Association for Higher Education, 1974.