APA
(1968). Certification of standardized radioactive sources. Washington: International Commission on Radiation Units and Measurements.
Chicago
1968. Certification of standardized radioactive sources. Washington: International Commission on Radiation Units and Measurements.
Harvard
(1968). Certification of standardized radioactive sources. Washington: International Commission on Radiation Units and Measurements.
MLA
Certification of standardized radioactive sources. Washington: International Commission on Radiation Units and Measurements. 1968.