APA (7th ed.) Citation

Hirst Adrian & OH learning.com. Basic principles of occupational hygiene.

Chicago Style (17th ed.) Citation

Hirst Adrian and OH learning.com. Basic Principles of Occupational Hygiene.

MLA (9th ed.) Citation

Hirst Adrian and OH learning.com. Basic Principles of Occupational Hygiene.

Warning: These citations may not always be 100% accurate.