Παραπομπή APA

Williams, J. F. (2000). The principles of physical education. College Book House.

Παραπομπή Chicago Style

Williams, Jesse Feiring. The Principles of Physical Education. Meerut: College Book House, 2000.

Παραπομπή MLA

Williams, Jesse Feiring. The Principles of Physical Education. College Book House, 2000.