Items where Year is 1973

Lewis, William M. (1973) A Limnological Survey of Lake Mainit, Philippines. IROH Internationale Revue der gesamten Hydrobiologie und Hydrographie, 58 (6). pp. 801-818.

MSC Missionaries (1973) “Roman Catholic church at Mainit in Surigao del Norte in the Philippines, 1973.”. [Image] (Submitted)