Watson, E. Vernon.
British mosses and liverworts / E. Vernon Watson . - 3rd ed. - New York : Cambridge University Press , 1981. - xviii, 519p. : ill. ; 23 cm .
Includes index.
0521240042
MOSSES-- GREAT BRITAIN.
Liverworts.
588.20941 / WAB
British mosses and liverworts / E. Vernon Watson . - 3rd ed. - New York : Cambridge University Press , 1981. - xviii, 519p. : ill. ; 23 cm .
Includes index.
0521240042
MOSSES-- GREAT BRITAIN.
Liverworts.
588.20941 / WAB