Citazione Stile APA (7a Edizione)

Reyes, F. D., & Juan, T. D. (1927). Government coal purchases under specifications. Bureau of Printing.

Citazione stile Chigago Style (17a edizione)

Reyes, F. D., e T. Dar Juan. Government Coal Purchases Under Specifications. Manila: Bureau of Printing, 1927.

Citatione MLA (9a ed.)

Reyes, F. D., e T. Dar Juan. Government Coal Purchases Under Specifications. Bureau of Printing, 1927.