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Phytophagous insects -- Congresses. : Forest insect guilds : patterns of interaction with host trees : proceedings of a joint IUFRO working party symposium, Abakan, Siberia, U.S.S.R., August 13-17, 1989 / edited by Yuri N. Baranchikov [and three others].
Phytophthora -- Congresses. : Phytophthoras in forests and natural ecosystems : proceedings of the Fourth Meeting of the International Union of Forest Research Organizations (IUFRO) working party S07.02.09 : August 26-31, 2007, Monterey, California / Ellen Michaels Goheen and Susan J. Frankel.
Phytophthora diseases -- Congresses. : Phytophthoras in forests and natural ecosystems : proceedings of the Fourth Meeting of the International Union of Forest Research Organizations (IUFRO) working party S07.02.09 : August 26-31, 2007, Monterey, California / Ellen Michaels Goheen and Susan J. Frankel.
Phytophthora ramorum -- Congresses. : Proceedings of the Sudden Oak Death Fourth Science Symposium : June 15-18, 2009, Santa Cruz, California / technical coordinators, Susan J. Frankel, John T. Kliejunas, and Katharine M. Palmieri.
Phytoplankton -- Florida -- Charlotte Harbor (Bay) : Effects of nitrogen and phosphorus additions on phytoplankton productivity and chlorophyll a in a subtropical estuary, Charlotte Harbor, Florida / by Ralph T. Montgomery, Benjamin F. McPherson, Edward E. Emmons.
Phytoplankton -- Maryland. : Phytoplankton dynamics of the fresh, tidal Potomac River, Maryland, for the summers of 1979 to 1981 / by Ronald R.H. Cohen.
Phytoplankton -- Montana. : Limnological studies of Flathead Lake, Montana : a status report / by Arden R. Gaufin, Gerald W. Prescott, John F. Tibbs.
Phytoplankton -- New York Bight (N.J. and N.Y.) : Net phytoplankton and zooplankton in the New York Bight, January 1976 to February 1978, with comments on the effects of wind, Gulf Stream eddies, and slope water intrusions / Daniel E. Smith and Jack W. Jossi.