Gaya APA

Phd, J, J, P. et al (2008). E-BOOK : RETURN IN INVESTMENT IN MEETINGS AND EVENTS . USA: Butterworth-Heinemann.

Gaya MLA

Phd, Jack, J., Phillips,. et al. "E-BOOK : RETURN IN INVESTMENT IN MEETINGS AND EVENTS". USA: Butterworth-Heinemann, 2008. Text.