Tohutoro APA (7th ed.)

Soules, J. A. (1968). What can the matter be? Bell Telephone Laboratoires.

Tohutoru Kātū Chicago (17th ed.)

Soules, Jack A. What Can the Matter Be? Cresskill: Bell Telephone Laboratoires, 1968.

Tohutoro MLA (9th ed.)

Soules, Jack A. What Can the Matter Be? Bell Telephone Laboratoires, 1968.