APA (7th ed.) Citation

Gerling, H., & Heller, K. H. (2007). All about machine tools (Revised to Indian standards). New Age Int. Pub.

Chicago Style (17th ed.) Citation

Gerling, Heinrich, and Karl H. Heller. All About Machine Tools (Revised to Indian Standards). India: New Age Int. Pub, 2007.

MLA (9th ed.) Citation

Gerling, Heinrich, and Karl H. Heller. All About Machine Tools (Revised to Indian Standards). New Age Int. Pub, 2007.