APA استشهاد

Gray, D. F. (2008). Observation and analysis of stellar photospheres. Cambridge university.

استشهاد بنمط شيكاغو

Gray, David F. Observation and Analysis of Stellar Photospheres. Cambridge: Cambridge university, 2008.

MLA استشهاد

Gray, David F. Observation and Analysis of Stellar Photospheres. Cambridge university, 2008.