[The Classification Research Group was] a typical British affair, with no resources beyond the native wit of its members, no allegiance to any existing system of classification, no fixed target, no recognition by the British Government (naturally), and at first only an amused tolerance from the library profession.

The Classification Research Group 1952—1962 (1962), p. 127

Pigeonholes and punchcards: identifying the division between library classification research and information retrieval research, 1952-1970 (Shawne D Miksa), 2002