@proceedings
{TN_libero_mab2,
author = {
Puerto Rico Agricultural Experiment Station
},
title = {
Agricultural extension notes
},
publisher = {},
keywords = {
Zeitschrift
},
year = {[1919?-1924?]},
address = {
San Juan
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}