APA Format
Cullis, C.F.
; Firth, J.G.
. (1981). Detection and measurement of hazardous gases. London : Heinemann
MLA Format
Cullis, C.F.; Firth, J.G.
. Detection and measurement of hazardous gases. London : Heinemann, 1981
Australian/Harvard Format
Cullis, C.F.
; Firth, J.G.
. 1981. Detection and measurement of hazardous gases. Heinemann, London
Warning: These citations may not always be 100% accurate.