18
A.21.75.26.27... broadcasting
A.21.75.26.67... public relations
A.21.75.34.. economics
A.21.75.40.. education (discipline)
A.21.75.48.. geography
A.21.75.56.. information science
A.21.75.56.4... information architecture
A.21.75.56.6... library science
A.21.75.64.. linguistics
A.21.75.64.50... morphology (linguistics)
A.21.75.64.74... semiotics
A.21.75.64.74.5.... pragmatics
A.21.75.64.74.7.... semantics
A.21.75.64.74.7.7..... semasiology
A.21.75.64.74.9.... syntactics
A.21.75.64.76... syntax
A.21.75.81.. sociology
A.32
A.32.10.
A.32.10.6.. seminars
A.32.10.8.. workshops
A.32.24. auctions
A.32.39. conferences
A.32.39.6.. professional conferences
A.32.55. exhibitions
A.44
A.44.10.
A.44.10.3.. collation
A.44.20.
A.44.20.4.. digitization
A.44.20.4.10... OCR
A.44.20.4.57... scanning
A.44.20.4.75... tracing
A.44.41.
A.44.41.3.. copyediting
A.44.41.6.. proofreading
A.44.51.
A.44.51.10..
A.44.51.10.10...
A.44.51.10.10.11.... alpha compositing
A.44.51.10.10.23.... anti-aliasing
A.44.51.10.10.42.... dithering
A.44.51.10.10.77.... tweening
A.44.51.10.19...
A.44.51.10.19.21.... diffusion-transfer processes
A.44.51.10.19.34.... duotone processes
A.44.51.10.19.52.... halftone processes
A.44.51.10.29... animation
A.44.51.10.42... color rendering
A.44.51.10.42.10.... absolute colorimetric rendering
A.44.51.10.42.52.... perceptual rendering
A.44.51.10.42.68.... relative colorimetric rendering
A.44.51.10.52... color separation
A.44.51.10.77... solarization