21. Nautical charts. Luzon. Inland waters south of Luzon, Ragay Gulf to Tayabas Bay, P. I., original surveys 1906-19, with additions from other sources; no. 4218. [Scale 1:200,000.] Bookmark Corporate/Agency Authors: Aeronautical Charts Publisher: Aeronautical Charts Date: Feb. 1941 SuDoc number: C 4.9:4218