APA (7th ed.) Citation

(1987). Soil map: Quirino Province, Philippines. Bureau of Soils.

Chicago Style (17th ed.) Citation

Soil Map: Quirino Province, Philippines. Manila: Bureau of Soils, 1987.

MLA (9th ed.) Citation

Soil Map: Quirino Province, Philippines. Bureau of Soils, 1987.

Warning: These citations may not always be 100% accurate.