SpringerLink (Online service), Krygowski, T. M., & Cyrański, M. K. (2009). Aromaticity in Heterocyclic Compounds. Springer Berlin Heidelberg.
Chicago Style (17th ed.) CitationSpringerLink (Online service), Tadeusz M. Krygowski, and Michał K. Cyrański. Aromaticity in Heterocyclic Compounds. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009.
MLA (8th ed.) CitationSpringerLink (Online service), et al. Aromaticity in Heterocyclic Compounds. Springer Berlin Heidelberg, 2009.
Warning: These citations may not always be 100% accurate.