Gaya APA
Nygren, A. (1969).
Agape and eros, transl.by Philip S.Watson, repr. Cet.pertama terj. 1932-1938. .
New York dsl:
Harper & Row.
Gaya MLA
Nygren, Anders..
"Agape and eros, transl.by Philip S.Watson, repr. Cet.pertama terj. 1932-1938. ".
New York dsl:
Harper & Row,
1969.
Buku.