TY  - SER
AU  - Horns,William H.
AU  - Marsden,J.Ellen
AU  - Krueger,Charles C.
TI  - Inexpensive method for quantitative assessment of Lake Trout egg deposition
N1  - Horns, W. H.-Illinois Natural History Survey, Post Office Box 634, Zion, Illinois 60099, U.S.A
ER  -