author = { Hitchcock, Frank H. },

title = { Trade of Puerto Rico },

publisher = {Government Printing Office},

keywords = { Puerto Rico , Westindien , Lateinamerika , Amerika },

year = {1898},

booktitle = {Bulletin / U.S. Department of Agriculture, Section of Foreign Markets ; no. 13},

address = { Washington },

url = { http://slubdd.de/katalog?TN_libero_mab2 }