00000cam a22000004a 4500 UP-8027390931313564417 Buklod 20070912122945.0 m|||||o||d|||||||| cr ||||||||||| 060111s1974 xx |||| r |||| u| d (iLib)UPVIS-00000026675 QK933 V64 1974 Vollenweider, Richard Albert. A manual on methods for measuring primary production in aquatic environments edited by R. A. Vollenweider ; with the collaboration of J. F. Talling and D. F. Westlake. 2nd ed. London International Biological Programme c[1974] 225 p. ill. IBP handbook; no. 12 Primary productivity (Biology) Measurement. UPVIS UPV-ML QK933 .V64 1974 Book