Boenninghausen › Dreams › Of Mental Effort
Of Excelling in Mental Work
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Cite
C. M. F. von Boenninghausen, Boenninghausen's Therapeutic Pocket Book (1891), p. 248 — Dreams; Of Mental Effort; Of Excelling in Mental WorkBoenninghausen › Dreams › Of Mental Effort
Cite
C. M. F. von Boenninghausen, Boenninghausen's Therapeutic Pocket Book (1891), p. 248 — Dreams; Of Mental Effort; Of Excelling in Mental Work