Fluid Mechanics of Turbomachinery /

Journal bearings in turbomachinery.

Principles of Photochemistry /

Principles of genetics. /

Principles of money and banking.

Basic principles and practice of microprocessors. /

The Principles of Physical Metallurgy

Principles of compiler design /

Chemical principles /

Telecommunications principles /

Principles of biogeography /

The principles of mathematics /

Accounting principles /

Principles of biochemistry /

Principles of Geodynamics.

Principles of microbiology /

Principles of Polarography /

Principles of Radiochemistry /

Principles of dynamics /

The principle of sociogenesis /

Principles of turbomachinery /