APA

Cowles E. S., . (1948). Don't be afraid; how to get rid of fear and fatigue. N.Y: Wilcox & Follet.

Chicago

Cowles Edward Spencer, . 1948. Don't be afraid; how to get rid of fear and fatigue. N.Y: Wilcox & Follet.

Harvard

Cowles E. S., . (1948). Don't be afraid; how to get rid of fear and fatigue. N.Y: Wilcox & Follet.

MLA

Cowles Edward Spencer, . Don't be afraid; how to get rid of fear and fatigue. N.Y: Wilcox & Follet. 1948.