APA (7 ম সংস্করণ) উদ্ধৃতি

Verdi, G. (1848). I Lombardi alla prima crociata =: The Lombards at the first crusade : a tragic opera in four acts. J. Douglas.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Verdi, Giuseppe. I Lombardi Alla Prima Crociata =: The Lombards at the First Crusade : A Tragic Opera in Four Acts. New York: J. Douglas, 1848.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Verdi, Giuseppe. I Lombardi Alla Prima Crociata =: The Lombards at the First Crusade : A Tragic Opera in Four Acts. J. Douglas, 1848.