Amiri,G. (2005). Internal or external reward. Military Science and Tactics, 1(1), 55-65.

Amiri,G. . "Internal or external reward", Military Science and Tactics, 1, 1, 2005, 55-65.

Amiri G. (2005). 'Internal or external reward', Military Science and Tactics, 1(1), pp. 55-65.

G. Amiri, "Internal or external reward," Military Science and Tactics, 1 1 (2005): 55-65,

Amiri G. Internal or external reward. Military Science and Tactics, 2005; 1(1): 55-65.