APA (7th ed.) Citation

Mueller, R. S., & Whelden, R. M. (1990). Commonwealth's scientific encyclopedia. Commonwealth Publishers.

Chicago Style (17th ed.) Citation

Mueller, R. Sterling, and R. M. Whelden. Commonwealth's Scientific Encyclopedia. New Delhi: Commonwealth Publishers, 1990.

MLA (9th ed.) Citation

Mueller, R. Sterling, and R. M. Whelden. Commonwealth's Scientific Encyclopedia. Commonwealth Publishers, 1990.

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