APA

Jeffries C., . (1961). Signpost in the fog. London: Dunmow Pall Mall press.

Chicago

Jeffries Charles, . 1961. Signpost in the fog. London: Dunmow Pall Mall press.

Harvard

Jeffries C., . (1961). Signpost in the fog. London: Dunmow Pall Mall press.

MLA

Jeffries Charles, . Signpost in the fog. London: Dunmow Pall Mall press. 1961.