Bruce, R. C. The use of thematic maps in analyzing soil erosion susceptibility of the Philippines. Philippine planning journal.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBruce, Romeo C. "The Use of Thematic Maps in Analyzing Soil Erosion Susceptibility of the Philippines." Philippine Planning Journal .
एमएलए (9वां संस्करण) प्रशस्ति पत्रBruce, Romeo C. "The Use of Thematic Maps in Analyzing Soil Erosion Susceptibility of the Philippines." Philippine Planning Journal, .
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