Higgins, Arthur Lovat. Phototopography : a practical manual of photographic surveying methods / by Arthur Lovat Higgins. - Cambridge [Eng.] : The University press, 1926. - xv, 130 p. illus., plates, diagrs. 19 cm. Subjects--Topical Terms: FOTOGRAMETRIAFOTOGRAFIA AEREA Universal Decimal Class. No.: 528.7