Gaya APA

Keesler, F, C., Battersby, S, E. (2019). Working with map projections : a guide to their selection . Boca Raton: CRC Press.

Gaya MLA

Keesler, Fritz, C.., Battersby, Sarah, E.. "Working with map projections : a guide to their selection". Boca Raton: CRC Press, 2019. Text.