Citazione Stile APA (7a Edizione)

Vaughan, L. (2017). A posthumous letter of gratitude. University of the Philippines Press.

Citazione stile Chigago Style (17a edizione)

Vaughan, Laurene. A Posthumous Letter of Gratitude. Diliman, Quezon City: University of the Philippines Press, 2017.

Citatione MLA (9a ed.)

Vaughan, Laurene. A Posthumous Letter of Gratitude. University of the Philippines Press, 2017.