McVickar, Malcolm H. Agricultural anhydrous ammonia, technology and use : proceedings of a simposium... - Memphis, Tenn. : Agricultural Ammonia Institute, 1966 - 314 p. ; gráfs. : ilus LCCN: 29260 Subjects--Topical Terms: Amoniaco anhidro como fertilizante. Dewey Class. No.: 631.8 / M2