Some fundamental principles of metabolism

Mode of access: Internet.

A guide and workbook in principles of farm and ranch management ...

Photoprinted.

Principles and problems of pattern making as applied to women's apparel,

Mode of access: Internet.

Automatic control; principles of feedback and their application in machine control.

Photocopy (negative)

Principles of sewage treatment.

Mode of access: Internet.

[Miscellaneous material used at the 1st-2d International Conference of Agricultural Economists, 1929-1930.]

Mode of access: Internet.

The principles of psychology,

Mode of access: Internet.