Woodward, R. B., & Hoffmann, R. (1970). The conservation of orbital symmetry. Chemie.
Cita Chicago (17th ed.)Woodward, R. B., i R. Hoffmann. The Conservation of Orbital Symmetry. Weinheim: Chemie, 1970.
Cita MLA (9th ed.)Woodward, R. B., i R. Hoffmann. The Conservation of Orbital Symmetry. Chemie, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.