Bellows, R. (1962). Executive skills: Their dynamics and development.
استشهاد بنمط شيكاغوBellows, Roger. Executive Skills: Their Dynamics and Development. 1962.
MLA استشهادBellows, Roger. Executive Skills: Their Dynamics and Development. 1962.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.