Citazione Stile APA (7a Edizione)

Valiente, A. (1979). Rubber: Production costs and returns and marketing, Northern and Southern Mindanao. Special Studies Division, Department of Agriculture.

Citazione stile Chigago Style (17a edizione)

Valiente, A.M. Rubber: Production Costs and Returns and Marketing, Northern and Southern Mindanao. Quezon City: Special Studies Division, Department of Agriculture, 1979.

Citatione MLA (9a ed.)

Valiente, A.M. Rubber: Production Costs and Returns and Marketing, Northern and Southern Mindanao. Special Studies Division, Department of Agriculture, 1979.