Contrast and visibility.
Our rough guess is there are 13,000 words in this book.
At a pace averaging 250 words per minute, this book will take 0 hours and 52 minutes to read. With a half hour per day, this will take 2 days to read.
How long will it take you?
This book will take an estimated to read at a reading speed averaging words per minute. With 30 minutes per day, this will take to read.
Enter your reading speedYou can take one of our WPM reading speed tests to find your reading speed.
Create a free account to track your reading progress, build your reading list, and set reading goals.
Publication
1992 - Commission Internationale de L'Eclairage, Vienna, Austria
Language
English
Word Count
13,000 words, Guess
Page Count
52 pages
Identifiers
- ISBN-103900734321
- ISBN-139783900734329
- Open LibraryOL15300184M
Subjects
Series Statement
- CIE -- 95
Reader Reviews
No reviews yet for this book.
Be the first to share your thoughts!