Tiamson, Juan Alvin B. Ang ating daigdig: kasaysayan, pagsulong, at pag-uugnayan ikatlong taon/ Juan Alvin B. Tiamson. - Manila St. Augustine Publications, Inc. 2007. - iv, 482 pages: illustrations, pictures; 25 cm. includes bibliographical references. Heograpiya ng daigdig Tagalog ISBN: 9789716835694 Subjects--Topical Terms: Araling panlipunan. Kasaysayan ng daigdig. Dewey Class. No.: 909 / T43a