The zone system for 35mm photographers a basic guide to exposure control by Graves, Carson 1947-

Secrets of a good digestion by Allen, Oliver E. 1922-

Farming systems development for small farms resource use productivity and income changes by Sandoval, Pedro R.

Farming system and nutrition-related factors among low income households in Laguna by Torres, Enriqueta B.

Metrication handbook a guide to understanding metric conversion and using the modern metric system.

Enzyme catalysis and regulation by Hammes, Gordon G. 1934-

Telecommunication transfers transnational corporation, the Philippines, and structure of domination by Sussman, Gerald

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Determinants of land use patterns in the highland areas by Consolacion, Cipriano C.

Man-environmental interactions case studies of the Masalukot upland community, 1982.

An overview of systems analysis and its application to forestry resources management by Rapera, Roberto P.