Organiza︠t︡si︠i︡a, oplata i dis︠t︡siplina truda v kolkhozakh - P︠i︡atni︠t︡skiĭ, P. P. (Pavel Petrovich) (Nauchno-popul︠i︡arna︠i︡a seri︠i︡a., 1951)