APA-viite (7. p.)

Ståhl, B. (1990). Taxonomic studies in the Theophrastaceae. Dept. of Systematic Botany, University of Göteborg.

Chicago-viite (17. p.)

Ståhl, Bertil. Taxonomic Studies in the Theophrastaceae. Göteborg, Sweden: Dept. of Systematic Botany, University of Göteborg, 1990.

MLA-viite (8. p.)

Ståhl, Bertil. Taxonomic Studies in the Theophrastaceae. Dept. of Systematic Botany, University of Göteborg, 1990.