Headland, T. N., & Headland, J. (1965). Libro a pegbasaan: Casiguran Dumagat (Agta). Summer Institute of Linguistics in cooperation with the Bureau of Public Schools and the Institute of National Language of the Department of Education.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিHeadland, Thomas N., এবং Janet Headland. Libro a Pegbasaan: Casiguran Dumagat (Agta). Manila: Summer Institute of Linguistics in cooperation with the Bureau of Public Schools and the Institute of National Language of the Department of Education, 1965.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিHeadland, Thomas N., এবং Janet Headland. Libro a Pegbasaan: Casiguran Dumagat (Agta). Summer Institute of Linguistics in cooperation with the Bureau of Public Schools and the Institute of National Language of the Department of Education, 1965.