It takes the average reader 15 hours and 49 minutes to read A Source Book in Astronomy and Astrophysics, 1900-1975 by Kenneth Lang
Assuming a reading speed of 250 words per minute. Learn more
A Source Book in Astronomy and Astrophysics, 1900-1975 by Kenneth Lang is 942 pages long, and a total of 237,384 words.
This makes it 318% the length of the average book. It also has 290% more words than the average book.
The average oral reading speed is 183 words per minute. This means it takes 21 hours and 37 minutes to read A Source Book in Astronomy and Astrophysics, 1900-1975 aloud.
A Source Book in Astronomy and Astrophysics, 1900-1975 is suitable for students ages 12 and up.
Note that there may be other factors that effect this rating besides length that are not factored in on this page. This may include things like complex language or sensitive topics not suitable for students of certain ages.
When deciding what to show young students always use your best judgement and consult a professional.
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