Cita APA (7th ed.)

Isaac, M. (1968). String class method. M.M. Cole Publishing.

Cita Chicago (17th ed.)

Isaac, Merle. String Class Method. Chicago, IL: M.M. Cole Publishing, 1968.

Cita MLA (9th ed.)

Isaac, Merle. String Class Method. M.M. Cole Publishing, 1968.