Valdes, A., & Schaeffer, B. (1995). Surveillance of Agricultural Prices and Trade: A Handbook for the Dominican Republic.
Chicago-viite (17. p.)Valdes, Alberto, ja Barry Schaeffer. Surveillance of Agricultural Prices and Trade: A Handbook for the Dominican Republic. 1995.
MLA-viite (9. p.)Valdes, Alberto, ja Barry Schaeffer. Surveillance of Agricultural Prices and Trade: A Handbook for the Dominican Republic. 1995.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.