APA Style
Suttles, Steven A, Suttles, Sharon F. (1981).
educators guide to free social studies materials (21 st.ed).
Randolph, Wisconsin:
Educators Progress Service.
Chicago Style
Suttles, Steven A, Suttles, Sharon F.
educators guide to free social studies materials.
21 st.ed
Randolph, Wisconsin:
Educators Progress Service,
1981.
REFERENSI.
MLA Style
Suttles, Steven A, Suttles, Sharon F.
educators guide to free social studies materials.
21 st.ed
Randolph, Wisconsin:
Educators Progress Service,
1981.
REFERENSI.
Turabian Style
Suttles, Steven A, Suttles, Sharon F.
educators guide to free social studies materials.
21 st.ed
Randolph, Wisconsin:
Educators Progress Service,
1981.
REFERENSI.