Author Francis Valk

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8.5/10 (4 votes)

8.5/10
4

Books by Francis Valk:

$Cover Strabismus Or Squint Latent And Fixed a Supplement to the Errors of Refractio$

Strabismus Or Squint Latent And Fixed a Supplement to the Errors of Refractio

Strabismus Or Squint Latent And Fixed a Su...

10 / 10

$Cover Lectures On the Errors of Refraction And Their Correction With Glasses$

Lectures On the Errors of Refraction And T...

7 / 10

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