Παραπομπή APA

Wheat croft, E. O. (1973). Stimulators for skill. McGraw-Hill.

Παραπομπή Chicago Style

Wheat croft, Eric O. Stimulators for Skill. London: McGraw-Hill, 1973.

Παραπομπή MLA

Wheat croft, Eric O. Stimulators for Skill. McGraw-Hill, 1973.