共 22 条
- [11] ULLRICH OA, 1960, INSTR SOC AMER C NY
- [12] van Leeuwenhoek A, 1674, PHIL T, V9, P23
- [13] VANDAM W, 1922, VERSLAG LANDBOUWK ON, V26, P106
- [14] WEBB BH, 1965, FUNDAMENTALS DAIR ED
- [15] WHITTLESTONE W. G., 1962, Australian Journal of Dairy Technology, V17, P108
- [16] WHITTLESTONE W. G., 1958, INDIAN JOUR DAIRY SCI, V11, P43