Texts extracted are from Hitler's Letters and Notes by Werner Maser is its 1974 year:
WorldCat official link:
The translation for that book was done by Arnold Pomerans, who is Jewish. The notes around some of the Hitler texts seem a bit biased but documents presented as a whole cannot be found elsewhere.
In quoting from Mein Kampf I have relied largely on Ralph Manheim's excellent translation, publishd by Hutchinson in 1969. I should Iike to acknowledge my indebtedness to Mr Manheim.
By arrangement the text of the original has beer stightly adapted (in certain passages extended and in others shortened) for this translation.