Watts, G. T. (1975). Points from letters: Emergency call systems.
Citação norma ChicagoWatts, G T. Points From Letters: Emergency Call Systems. 1975.
MLA引文Watts, G T. Points From Letters: Emergency Call Systems. 1975.
警告:這些引文格式不一定是100%准確.
Watts, G. T. (1975). Points from letters: Emergency call systems.
Citação norma ChicagoWatts, G T. Points From Letters: Emergency Call Systems. 1975.
MLA引文Watts, G T. Points From Letters: Emergency Call Systems. 1975.