Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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