ARNELL, A. (1963). Standard Graphical Symbols. McGraw-Hill.
Citación estilo ChicagoARNELL, Alvin. Standard Graphical Symbols. McGraw-Hill, 1963.
Cita MLAARNELL, Alvin. Standard Graphical Symbols. McGraw-Hill, 1963.
Warning: These citations may not always be 100% accurate.