Gaya APA
Hügel, F, V. (1963).
Essays and addresses on the philosophy of religion, [repr.]. Tjet.pertama 1921-1926. .
London:
Dent.
Gaya MLA
Hügel, Friedrich, Von.[1852-1924]..
"Essays and addresses on the philosophy of religion, [repr.]. Tjet.pertama 1921-1926. ".
London:
Dent,
1963.
Buku.