Gaya APA
Johnston, C.L., Willis, Alden T.. (1982).
Developmental mathematics .
Thousand Oaks, California:
Wadsworth Publishing.
Gaya Chicago
Johnston, C.L., Willis, Alden T..
Developmental mathematics.
Thousand Oaks, California:
Wadsworth Publishing,
1982.
Text.
Gaya MLA
Johnston, C.L., Willis, Alden T..
Developmental mathematics.
Thousand Oaks, California:
Wadsworth Publishing,
1982.
Text.
Gaya Turabian
Johnston, C.L., Willis, Alden T..
Developmental mathematics.
Thousand Oaks, California:
Wadsworth Publishing,
1982.
Print.