cam a22 u 4500 128670762 CHVBK 20201001063403.0 880212s1979 xxu | 00 |eng|d (OCoLC)312446388 (NEBIS)000250338 ETH-BIB ger ETH-BIB ETHICS-ISBD Seven decades that changed America a history of the American Society of agricultural engineers, 1907-1977 Robert E.Stewart St.Joseph - Mich. 1979 III, 432 p. 24 cm fig. American Society of Agricultural Engineers (DE-588)1087236312 gnd GESCHICHTE DER LANDWIRTSCHAFT ger (ETHUDK)000030670 ethudk VEREINIGTE STAATEN VON AMERIKA, USA (NORDAMERIKA) ger (ETHUDK)000007826 ethudk "1907/1977" ethudk u American Society of Agricultural Engineers nebis E2 u GESCHICHTE DER LANDWIRTSCHAFT ger 631(091) nebis E1 u VEREINIGTE STAATEN VON AMERIKA, USA (NORDAMERIKA) ger (73) nebis E1 u "1907/1977" nebis E1 u HISTORY OF AGRICULTURE eng 631(091) nebis E1 u HISTOIRE DE L'AGRICULTURE fre 631(091) nebis E1 u UNITED STATES OF AMERICA, USA (NORTH AMERICA) eng (73) nebis E1 u ÉTATS-UNIS D'AMÉRIQUE, USA (AMÉRIQUE DU NORD) fre (73) nebis E1 Stewart R.E. American Society of Agricultural Engineers (DE-588)1087236312 BK020000 XK020000 XK020000 NEBIS E16 E16 RH R 1982/154 NEBIS 700 1- Stewart R.E. NEBIS 710 2- American Society of Agricultural Engineers (DE-588)1087236312