TY  - BOOK
AU  - Crum,H.A.
AU  - Steere,W.C.
TI  - The mosses of Porto Rico and the Virgin Islands /  
T2  - Scientific survey of Porto Rico and the Virgin Islands ; 
PY  - 1957///
CY  - New York : 
PB  - New York Academy of Sciences, 
KW  - Musgos
ER  -