Citazione Stile APA (7a Edizione)

Ek, K. (1975). The development of OE ăe (i-mutated ă) before nasals and Oe āe in south-eastern Middle English. CWK Gleerup.

Citazione stile Chigago Style (17a edizione)

Ek, Karl-Gustav. The Development of OE ăe (i-mutated ă) Before Nasals and Oe āe in South-eastern Middle English. Lund: CWK Gleerup, 1975.

Citatione MLA (9a ed.)

Ek, Karl-Gustav. The Development of OE ăe (i-mutated ă) Before Nasals and Oe āe in South-eastern Middle English. CWK Gleerup, 1975.