APA (7th ed.) Citation

Devasinghe, D. Science & technology: A supplimentary text book grade 7.

Chicago Style (17th ed.) Citation

Devasinghe, D.M.A. Science & Technology: A Supplimentary Text Book Grade 7.

MLA (9th ed.) Citation

Devasinghe, D.M.A. Science & Technology: A Supplimentary Text Book Grade 7.

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