Nauchno-tekhnicheskii progress i sorevnovanie dvukh sistem.
Publisher: Vladimirskaya tip.
Published: 1975
Place of publication: Vladimir
Language: rus
Notes: At head of title: Ministerstvoprosveshcheniya RSFSR. Vladimirskii gos. pedag. in-t im. P.I. Lebedeva-Polyanskogo.