Cheeseman, G.W.H. Condensed pyrazines by G.W.H. Cheeseman, R.F. Coolwon. - New York Interscience Pub. 1977 - xiii, 835p., illus - (The chemistry of heterocyclic compounds v.35). . ISBN: 0471-38204-3. Subjects--Topical Terms: Hetrocyclic compounds Chemistry organic. Dewey Class. No.: 547.7, / C33C