Maclean, T.S.M creator text Cambridge Combridge university 1986 monographic 360 Antennas (Electronics) 621.380283MAC 052130668X https://books.google.com.pk/books?id=JVB2QgAACAAJ&dq=principles+of+antennas+wire+and+aperture+by+maclean&hl=en&sa=X&redir_esc=y https://books.google.com.pk/books?id=JVB2QgAACAAJ&dq=principles+of+antennas+wire+and+aperture+by+maclean&hl=en&sa=X&redir_esc=y