Porto Rico. Department of Agriculture and Labor. (1921). The journal of the Department of Agriculture and Labor of Porto Rico. Porto Rico. Department of Agriculture and Labor.
Cita Chicago Style (17a ed.)Porto Rico. Department of Agriculture and Labor. The Journal of the Department of Agriculture and Labor of Porto Rico. Río Piedras: Porto Rico. Department of Agriculture and Labor, 1921.
Cita MLA (8a ed.)Porto Rico. Department of Agriculture and Labor. The Journal of the Department of Agriculture and Labor of Porto Rico. Porto Rico. Department of Agriculture and Labor, 1921.
Precaución: Estas citas no son 100% exactas.