APA
ESMELITA P. ULANGCA et. al, .POWERTOOLS IN SCIENCE 1. ICI MINISTRIES INC., 2006: .
Chicago
ESMELITA P. ULANGCA et. al, .POWERTOOLS IN SCIENCE 1. ICI MINISTRIES INC., 2006: .
Harvard
ESMELITA P. ULANGCA et. al, .POWERTOOLS IN SCIENCE 1. ICI MINISTRIES INC., 2006: .
MLA
ESMELITA P. ULANGCA et. al, .ICI MINISTRIES INC., 2006: . .