Παραπομπή σε μορφή APA (7η εκδ.)

Haeberli, E. (2002). Features, categories and the syntax of A-positions: Cross-linguistic variation in the Germanic languages. Kluwer Academic Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Haeberli, Eric. Features, Categories and the Syntax of A-positions: Cross-linguistic Variation in the Germanic Languages. Dordrecht Boston: Kluwer Academic Publishers, 2002.

Παραπομπή σε μορφή MLA (8th εκδ.)

Haeberli, Eric. Features, Categories and the Syntax of A-positions: Cross-linguistic Variation in the Germanic Languages. Kluwer Academic Publishers, 2002.