APA (7 ম সংস্করণ) উদ্ধৃতি

(1975). How to measure pH with chemical indicators and a simple pH meter [slaid]. Fairfield, Conn. : Communication Skills Corp..

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

How to Measure PH with Chemical Indicators and a Simple PH Meter [slaid]. Fairfield, Conn. : Communication Skills Corp., 1975.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

How to Measure PH with Chemical Indicators and a Simple PH Meter [slaid]. Fairfield, Conn. : Communication Skills Corp., 1975.