APA

Gassidy S., . (1977). Audacity to believe. London: Gollins.

Chicago

Gassidy Sheila, . 1977. Audacity to believe. London: Gollins.

Harvard

Gassidy S., . (1977). Audacity to believe. London: Gollins.

MLA

Gassidy Sheila, . Audacity to believe. London: Gollins. 1977.