APA (7th ed.) Citation

So, P. L. (2008). The first Philippine domestic travel & tour handbook 2008. Philippine Travel Agencies Association (PTAA).

Chicago Style (17th ed.) Citation

So, Paul L. The First Philippine Domestic Travel & Tour Handbook 2008. Pasay City: Philippine Travel Agencies Association (PTAA), 2008.

MLA (9th ed.) Citation

So, Paul L. The First Philippine Domestic Travel & Tour Handbook 2008. Philippine Travel Agencies Association (PTAA), 2008.