Trích dẫn APA

Pollard, M. (1994). Alexander Graham Bell: The story of the invention of the telephone and its effect on out lives. Orient Longman.

Trích dẫn kiểu Chicago

Pollard, Michael. Alexander Graham Bell: The Story of the Invention of the Telephone and Its Effect on Out Lives. Hyderabad: Orient Longman, 1994.

Trích dẫn MLA

Pollard, Michael. Alexander Graham Bell: The Story of the Invention of the Telephone and Its Effect on Out Lives. Orient Longman, 1994.

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