For Web Sources: If I was using a particular website (instead of John Smith's book), the signal phrase would look exactly the same, but I would say According to Pocahontasrules.com....
CECOM is The Critical Link that ensures the global readiness of the complex, networked C4ISR systems and capabilities that provide our joint forces with the advanced information and technology they need to communicate on today's battlefield.
The Council for Electronic Media (CEM) is a regulatory agency of Bulgaria that is responsible for electronic communications, especially the broadcasting of radio and TV. The CEM regulates broadcasts by setting standards and regulations that operators must comply with.