APA (7. basım) Alıntı

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

Chicago Style (17. basım) Atıf

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

MLA (9th ed.) Atıf

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