TY  - BOOK
AU  - Sharp,Henry
TI  - Finite functions : : an introduction to combinatorial mathematics / 
U1  - 511.6 SHA 
PY  - 1965///
CY  - Englewood Cliffs, N.J. : 
PB  - Prentice-Hall , 
KW  - Combinatorial analysis
N1  -  Includes bibliographical references (p. 84-85)
ER  -