Philippine Islands. Department of Agriculture and Commerce. (1995). Manual on land surveys. Department of Environment and Natural Resources.
Chicago Style (17. basım) AtıfPhilippine Islands. Department of Agriculture and Commerce. Manual on Land Surveys. Quezon City: Department of Environment and Natural Resources, 1995.
MLA (9th ed.) AtıfPhilippine Islands. Department of Agriculture and Commerce. Manual on Land Surveys. Department of Environment and Natural Resources, 1995.
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