APA aipamena

Sala, H. J. (1998). Heroes: People who made a difference in our world. OMF Literature.

Chicago Style aipamena

Sala, Harold J. Heroes: People Who Made a Difference in Our World. Manila: OMF Literature, 1998.

MLA aipamena

Sala, Harold J. Heroes: People Who Made a Difference in Our World. OMF Literature, 1998.