Cita APA (7th ed.)
Harrison, A. J., & Weaver, E. S. (1989). Chemistry: A search to understand. Harcourt Brace Jovanovich.
Cita Chicago (17th ed.)
Harrison, Anna J., i Edwin S. Weaver. Chemistry: A Search to Understand. San Diego: Harcourt Brace Jovanovich, 1989.
Cita MLA (9th ed.)
Harrison, Anna J., i Edwin S. Weaver. Chemistry: A Search to Understand. Harcourt Brace Jovanovich, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.