TY - RPRT TI - Annual contribution of carbon, nitrogen, and phosphorus by migrant Canada geese to a hardwater lake AU - Bruce A. Manny AU - Robert G. Wetzel AU - W.C. Johnson PY - 1975 DO - 10.1080/03680770.1974.11896143 UR - https://pubs.usgs.gov/publication/1000301 ID - 1000301 ER -