Hofmann-Wellenhof, B., Lichtenegger, H., & Collins, J. (2007). GPS: Theory and practice. - 5th rev. ed. , (5th rev. Ed.). Springer (India) Private limited.
استشهاد بنمط شيكاغوHofmann-Wellenhof, B., H. Lichtenegger, و J. Collins. GPS: Theory and Practice. - 5th Rev. Ed. ,. 5th rev. Ed. New Delhi: Springer (India) Private limited, 2007.
MLA استشهادHofmann-Wellenhof, B., et al. GPS: Theory and Practice. - 5th Rev. Ed. ,. 5th rev. Ed. Springer (India) Private limited, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.