O'Sullivan, D. (2018). Geographic information analysis / David O'Sullivan and David J. Unwin. Hoboken, New Jersey : John Wiley & Sons, Inc., [2010].
استشهاد بنمط شيكاغوO'Sullivan, David. Geographic Information Analysis / David O'Sullivan and David J. Unwin. Hoboken, New Jersey : John Wiley & Sons, Inc., [2010], 2018.
MLA استشهادO'Sullivan, David. Geographic Information Analysis / David O'Sullivan and David J. Unwin. Hoboken, New Jersey : John Wiley & Sons, Inc., [2010], 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.