APA সাইটেশন

Butlin, H. T. (1872). Ether as an Anæsthetic.

শিকাগো স্টাইলে সাইটেশন

Butlin, Henry Trentham. Ether As an Anæsthetic. 1872.

এমএলএ সাইটেশন

Butlin, Henry Trentham. Ether As an Anæsthetic. 1872.