edited by Jung In-hah
Hollym, 1966
Buku Teks
Wisconsin American Society of Agronomy , 1965
Buku Teks
Zavelski, F
Moscou Editions en Langues Etrangeres 1959
Buku Teks
edited by J.H. Burns, H.L.A. Hart
Oxford University Press , 2008
Buku Teks
edited by Herbert W. Robinson; Douglas E. Knight
Spartan Books , 1972
Buku Teks