APA

Lessing D., . (1994). The Sirian Experiments. London: Flamingo.

Chicago

Lessing D, . 1994. The Sirian Experiments. London: Flamingo.

Harvard

Lessing D., . (1994). The Sirian Experiments. London: Flamingo.

MLA

Lessing D, . The Sirian Experiments. London: Flamingo. 1994.