APA (7th ed.) Citation

(1951). Six-membered heterocyclic nitrogen compounds with four condensed rings. Interscience Publ.

Chicago Style (17th ed.) Citation

Six-membered Heterocyclic Nitrogen Compounds with Four Condensed Rings. New York [u.a.]: Interscience Publ, 1951.

MLA (9th ed.) Citation

Six-membered Heterocyclic Nitrogen Compounds with Four Condensed Rings. Interscience Publ, 1951.