APA Style
O' Dell, Isabelita C. et.,al. (1993).
Numlock 1 (1st).
Quezon City, Philippines:
Trinitas Publishing, Inc..
Chicago Style
O' Dell, Isabelita C. et.,al.
Numlock 1.
1st
Quezon City, Philippines:
Trinitas Publishing, Inc.,
1993.
Text.
MLA Style
O' Dell, Isabelita C. et.,al.
Numlock 1.
1st
Quezon City, Philippines:
Trinitas Publishing, Inc.,
1993.
Text.
Turabian Style
O' Dell, Isabelita C. et.,al.
Numlock 1.
1st
Quezon City, Philippines:
Trinitas Publishing, Inc.,
1993.
Print.