Cover Image

Concentration! : how to focus for success /

Bibliographic Details
Main Author: Horn,Sam.
Format: Book
Language:English
Published: Los Altos, California: Crisp Publications, 1991..
Subjects:
Mental discipline.
Attention.
Success -- > Psychological aspects.
Description
Physical Description:iii, 92 p: ill.; 26 cm..
ISBN:1560520736

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