Παραπομπή APA

B.M.Sharma & A.S.Sharma. Encyclopaedia of education in 21st century: Physics education. Commonwealth.

Παραπομπή Chicago Style

B.M.Sharma και A.S.Sharma. Encyclopaedia of Education in 21st Century: Physics Education. New Delhi: Commonwealth.

Παραπομπή MLA

B.M.Sharma και A.S.Sharma. Encyclopaedia of Education in 21st Century: Physics Education. Commonwealth.