Proceedings and papers of the second International congress of soil science. Leningrad--Moscow, USSR, July 20-31, 1930 ...

APA Citation

International Congress of Soil Science. (2nd : 1930 : Saint Petersburg and Moscow, R. (193235). Proceedings and papers of the second International congress of soil science. Leningrad--Moscow, USSR, July 20-31, 1930 ... Moscow: State publishing house of agricultural, cooperative and collective farm literature (Selkolkhozgis).

MLA Citation

International Congress of Soil Science. (2nd : 1930 : Saint Petersburg and Moscow, Russia). Proceedings And Papers of the Second International Congress of Soil Science. Leningrad--Moscow, USSR, July 20-31, 1930 ... Moscow: State publishing house of agricultural, cooperative and collective farm literature (Selkolkhozgis), 193235.