cam a22 2 4500 151086869 CHVBK 20160808061035.0 720215s1970 ag |||| 001 0 eng| 71273675 (OCoLC)251389 (NEBIS)003471549 (OCoLC)251389 (OCoLC)34883540 DLC SzZuIDS NEBIS ZBZ S540.A2 P36 630/.72 Papadakis Juan Agricultural research, principles, methodology, suggestions fundamental considerations on science and research, historical sketch ... arranged according to the chapters of "fundamentals of agronomy", and indexed alphabetically by subject by J. Papadakis Buenos Aires J. Papadakis 1970 88 p. Ill. Agriculture Research u Landwirtschaft / 1950- ersch idszbz Z9 MedeaZBZ idszbz ZR NEBIS 100 1- Papadakis Juan BK020000 XK020000 XK020000 NEBIS Z01 Z01 05 DA 16776