Gaya APA

Purbohadiwidjojo, M, , G, S, O, I. (1960). Tentative Groundwater Map of Java and Madura . : .

Gaya MLA

Purbohadiwidjojo, M.M.,, , Geological, Survey, Of, Indonesia. "Tentative Groundwater Map of Java and Madura". : , 1960. Map.