Allen, C. F. H. (1958). Six-membered heterocyclic nitrogen compounds with three condensed rings / by C.F.H. Allen. Interscience.
Chicago Style (17th ed.) CitationAllen, Charles Francis Hitchcok. Six-membered Heterocyclic Nitrogen Compounds with Three Condensed Rings / by C.F.H. Allen. Interscience, 1958.
MLA (9th ed.) CitationAllen, Charles Francis Hitchcok. Six-membered Heterocyclic Nitrogen Compounds with Three Condensed Rings / by C.F.H. Allen. Interscience, 1958.
Warning: These citations may not always be 100% accurate.