Philippines (Commonwealth) Bureau of Science & Laya, V. G. (1941). Leather manufacture and its possibilities in the Philippines. Bureau of Print.
Chicago-viite (17. p.)Philippines (Commonwealth) Bureau of Science ja Vicente Gregorio Laya. Leather Manufacture and Its Possibilities in the Philippines. Manila: Bureau of Print, 1941.
MLA-viite (9. p.)Philippines (Commonwealth) Bureau of Science ja Vicente Gregorio Laya. Leather Manufacture and Its Possibilities in the Philippines. Bureau of Print, 1941.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.