APA Format
Sixto O De Leon;
. (1978). Police inteligence guide
/
. Manila : Interlino Printing CO
MLA Format
Sixto O De Leon;
. Police inteligence guide
/
. Manila : Interlino Printing CO, 1978
Chicago Format
Sixto O De Leon;
. Police inteligence guide
/
. Manila : Interlino Printing CO, 1978
Australian/Harvard Format
Sixto O De Leon;
. 1978. Police inteligence guide
/
. Interlino Printing CO Manila