Gaya APA
TOWNSEND, M. (1987).
Discrete Mathematics Applied Combinatories and Graph Theory (1).
California:
The Benjamin/Cummings Publishing Company.
Gaya MLA
TOWNSEND, Michael.
"Discrete Mathematics Applied Combinatories and Graph Theory".
1
California:
The Benjamin/Cummings Publishing Company,
1987.
Buku.