APA Style

Norrman, R. (1980). Nature and language: a semiotic study of cucurbits in literature oleh Ralf Norrman and John Haarberg . London: Routledge & Kegan Paul.

MLA Style

Norrman, Ralf. "Nature and language: a semiotic study of cucurbits in literature oleh Ralf Norrman and John Haarberg". London: Routledge & Kegan Paul, 1980. Text.