APA

Forbes P., . (1983). Harrap's concise. London: Harrap Reference.

Chicago

Forbes Patrecia, . 1983. Harrap's concise. London: Harrap Reference.

Harvard

Forbes P., . (1983). Harrap's concise. London: Harrap Reference.

MLA

Forbes Patrecia, . Harrap's concise. London: Harrap Reference. 1983.