APA-ийн эшлэл(7 дахь хэвлэлт)

Lewis, C., & Hooper, W. (1982). Fern-seed and elephants: And other essays on christianity. Collins.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Lewis, C.S, ба Walter Hooper. Fern-seed and Elephants: And Other Essays on Christianity. Glasgow: Collins, 1982.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Lewis, C.S, ба Walter Hooper. Fern-seed and Elephants: And Other Essays on Christianity. Collins, 1982.