Pollard, M. (1994). Alexander Graham Bell: The story of the invention of the telephone and its effect on out lives. Orient Longman.
استشهاد بنمط شيكاغوPollard, Michael. Alexander Graham Bell: The Story of the Invention of the Telephone and Its Effect on Out Lives. Hyderabad: Orient Longman, 1994.
MLA استشهادPollard, Michael. Alexander Graham Bell: The Story of the Invention of the Telephone and Its Effect on Out Lives. Orient Longman, 1994.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.