Gaya APA
Maaß, C., Hansen-Schirra, S. (2020).
Easy language research :text and user perspectives .
Berlin, Germany:
Frank & Timme.
Gaya MLA
Maaß, Christiane., Hansen-Schirra, Silvia.
"Easy language research :text and user perspectives".
Berlin, Germany:
Frank & Timme,
2020.
Text.