Gaya APA

Thomasma, D, C. (1983). An apology for the value of human life. Foreword: Kenneth L. Vaux. . St Louis: St Louis Catholic Health Association of the US.

Gaya MLA

Thomasma, David, C.. "An apology for the value of human life. Foreword: Kenneth L. Vaux. ". St Louis: St Louis Catholic Health Association of the US, 1983. Buku.