Anhydrous ammonia. Silsoe: Business Press, 1971 128 p. : ill.
Anhydrous ammonia. Silsoe: Business Press, 1971 128 p. : ill.
(1971) Anhydrous ammonia, Silsoe: Business Press 128 p. : ill.
(1971). Anhydrous ammonia. Proc. of a Symp. on aspects of its technology and use as a fertilizer, December 15-17 1970. Silsoe. Silsoe: Business Press, 128 p. : ill.
Anhydrous ammonia: Proc. of a Symp. on aspects of its technology and use as a fertilizer, December 15-17 1970. Silsoe. Silsoe: Business Press; 1971. p. 128 p. : ill.