APA
GINA P. SERQUIṄA, .SIMPLY SCIENCE IN THE NEXT COUNTRY SKILLBOOK 6. QUEZON CITY: PHOENIX PUBLISHING HOUSE, INC. 2004: .
Chicago
GINA P. SERQUIṄA, .SIMPLY SCIENCE IN THE NEXT COUNTRY SKILLBOOK 6. QUEZON CITY: PHOENIX PUBLISHING HOUSE, INC. 2004: .
Harvard
GINA P. SERQUIṄA, .SIMPLY SCIENCE IN THE NEXT COUNTRY SKILLBOOK 6. QUEZON CITY: PHOENIX PUBLISHING HOUSE, INC. 2004: .
MLA
GINA P. SERQUIṄA, .QUEZON CITY: PHOENIX PUBLISHING HOUSE, INC. 2004: . .
