APA aipamena

(1961). Land classification, sub-province of Ifugao, province of Isabela. Bureau of Forestry.

Chicago Style aipamena

Land Classification, Sub-province of Ifugao, Province of Isabela. Manila: Bureau of Forestry, 1961.

MLA aipamena

Land Classification, Sub-province of Ifugao, Province of Isabela. Bureau of Forestry, 1961.