1.
, . Map logic. Sydney: John S. Rybak, Janet M. Rybak; 1973.
et . Map logic. Sydney : John S. Rybak, Janet M. Rybak, 26 mai 1973. ISBN 0-9598576-0-5
Rybak John Sydney & Rybak Janet Margaret. (1973). Map logic: And other extensions of traditional logic. John S. Rybak, Janet M. Rybak.
MLA (8th ed.) CitationRybak John Sydney and Rybak Janet Margaret. Map Logic: And Other Extensions of Traditional Logic. John S. Rybak, Janet M. Rybak, 1973.
Warning: These citations may not always be 100% accurate.