Functional Grammar Conference Copenhagen, Denmark, ebrary, Inc, Fortescue, M. D., Harder, P., & Kristoffersen, L. (1992). Layered structure and reference in a functional perspective: Papers from the Functional Grammar Conference in Copenhagen, 1990. John Benjamins Pub..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Functional Grammar Conference Copenhagen, Denmark, Inc ebrary, Michael D. Fortescue, Peter Harder, و Lars Kristoffersen. Layered Structure and Reference in a Functional Perspective: Papers from the Functional Grammar Conference in Copenhagen, 1990. Amsterdam ; Philadelphia: John Benjamins Pub., 1992.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Functional Grammar Conference Copenhagen, Denmark, et al. Layered Structure and Reference in a Functional Perspective: Papers from the Functional Grammar Conference in Copenhagen, 1990. John Benjamins Pub., 1992.