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by Jacobs, Alan
by Gordon, James; Hardy, Alan; Jacobs, Kristina J.; et al.
by Jacobs,Alan
by Maricopa Mathematics; Jacobs, Alan; Adamson, Scott; et al.
by Alan M. Jacobs
by Auden, W. H.; Jacobs, Alan
by Jaokar, Ajit V.; Jacobs, Brian; Moore, Alan