Pichon, L. (1996). Environmental management for hotels: The Industry guide to best practice (2nd ed.). Oxford: Butterworth-Heinemann.
استشهاد بنمط شيكاغوPichon, Liz,res. Environmental Management for Hotels: The Industry Guide to Best Practice. 2nd ed. Oxford: Butterworth-Heinemann, 1996.
MLA استشهادPichon, Liz,res. Environmental Management for Hotels: The Industry Guide to Best Practice. 2nd ed. Oxford: Butterworth-Heinemann, 1996.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.