Davis, S. M., & Lawrence, P. R. (1981). Matrix. Addison-Wesley Publishing Company, Inc.
Cita Chicago (17th ed.)Davis, Stanley M., i Paul R. Lawrence. Matrix. Reading, Massachusetts: Addison-Wesley Publishing Company, Inc, 1981.
Cita MLA (9th ed.)Davis, Stanley M., i Paul R. Lawrence. Matrix. Addison-Wesley Publishing Company, Inc, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.