Gaya APA
Andersen, R, R. ().
History & Geography Grade 9 Unit 5 Student Book: L.I.F.E.P.A.C .
Rock Rapids:
Alpha Omega Publications.
Gaya MLA
Andersen, Ricard, R..
"History & Geography Grade 9 Unit 5 Student Book: L.I.F.E.P.A.C".
Rock Rapids:
Alpha Omega Publications,
.
Text.