共 8 条
[1]
BERG PAUL F., 1956, JOUR WILDLIFE MANAGEMENT, V20, P253, DOI 10.2307/3796959
[3]
EVANS CD, 1952, 16 US FISH WILDL SER
[4]
GOLLOP JB, UNPUBLISHED REPORT
[5]
HEYLAND JD, 1965, THESIS U GUELPH
[6]
Milne H., 1963, THESIS U ABERDEEN
[8]
[No title captured]