APA
Hawkings R., Merritt W., Craven J., Atomic Energy of Canada Limited & Proceedings of a symposium. (1951). The maintenance of radioactive standards with the 4Ò proportional counter. Chalk River: AECL.
Chicago
Hawkings R.C, Merritt W.F, Craven J.H, Atomic Energy of Canada Limited and Proceedings of a symposium. 1951. The maintenance of radioactive standards with the 4Ò proportional counter. Chalk River: AECL.
Harvard
Hawkings R., Merritt W., Craven J., Atomic Energy of Canada Limited and Proceedings of a symposium. (1951). The maintenance of radioactive standards with the 4Ò proportional counter. Chalk River: AECL.
MLA
Hawkings R.C, Merritt W.F, Craven J.H, Atomic Energy of Canada Limited and Proceedings of a symposium. The maintenance of radioactive standards with the 4Ò proportional counter. Chalk River: AECL. 1951.