Williams, A. (1970). Introduction to laboratory chemistry: General. Addison-Wesley.
Cita Chicago (17th ed.)Williams, A.L. Introduction to Laboratory Chemistry: General. Reading, Mass: Addison-Wesley, 1970.
Cita MLA (9th ed.)Williams, A.L. Introduction to Laboratory Chemistry: General. Addison-Wesley, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.