共 30 条
[11]
GOATES RJ, 1947, THESIS U WISCONSIN
[12]
HAWKINS A, 1943, THESIS RUTGERS U
[13]
HOBER R, 1945, PASSIVE PENETRATION, P525
[14]
HUNTER AS, 1942, THESIS RUTGERS U
[16]
LUCUS RE, 1947, J AM SOC AGRON, V39, P887
[19]
MORRISON FB, 1946, FEEDS FEEDING