Maling, D. (1973). Coordinate Systems and Map Projections. George Philip and Son Limited.
Citazione stile Chigago Style (17a edizione)Maling, D.H. Coordinate Systems and Map Projections. London: George Philip and Son Limited, 1973.
Citatione MLA (9a ed.)Maling, D.H. Coordinate Systems and Map Projections. George Philip and Son Limited, 1973.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.