APA

Cassidy S., . (1994). Light from the dark valley. London: Darton, Longman and Todd.

Chicago

Cassidy Sheila, . 1994. Light from the dark valley. London: Darton, Longman and Todd.

Harvard

Cassidy S., . (1994). Light from the dark valley. London: Darton, Longman and Todd.

MLA

Cassidy Sheila, . Light from the dark valley. London: Darton, Longman and Todd. 1994.