6944
6945
6943
Gratzer, George
6391-
Universal algebra
Princeton, N. J.
Van Nostran Reinhold Co.
]1968[
xvi, 368 p.: ill
the Univerlity series jin hegher mathematics
Bibliography: p. 330-359
George Gratzer
، Algebra, Universal
QA
251
.
G68
AU
TI
CL
CL
CL
