APA সাইটেশন

Hefner, D. (2002). Does Cough Syrup Work? Experts Say, ‘Not Really’.

শিকাগো স্টাইলে সাইটেশন

Hefner, David. Does Cough Syrup Work? Experts Say, ‘Not Really’. 2002.

এমএলএ সাইটেশন

Hefner, David. Does Cough Syrup Work? Experts Say, ‘Not Really’. 2002.