Hofmann-Wellenhof, B., Lichtenegger, H., & Collins, J. (2007). GPS: Theory and practice. - 5th rev. ed. , (5th rev. Ed.). Springer (India) Private limited.
शिकागो स्टाइल उद्धरणHofmann-Wellenhof, B., H. Lichtenegger, और J. Collins. GPS: Theory and Practice. - 5th Rev. Ed. ,. 5th rev. Ed. New Delhi: Springer (India) Private limited, 2007.
एमएलए उद्धरणHofmann-Wellenhof, B., et al. GPS: Theory and Practice. - 5th Rev. Ed. ,. 5th rev. Ed. Springer (India) Private limited, 2007.
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