Botha, R. P., & Winckler, W. K. (1973). The justification of linguistic hypotheses: A study of nondemonstrative inference in transformational grammar. Mouton.
Lua i Stíl Chicago (17ú heag.)Botha, Rudolf P., agus Walter K. Winckler. The Justification of Linguistic Hypotheses: A Study of Nondemonstrative Inference in Transformational Grammar. The Hague: Mouton, 1973.
Lua MLA (8ú heag.)Botha, Rudolf P., agus Walter K. Winckler. The Justification of Linguistic Hypotheses: A Study of Nondemonstrative Inference in Transformational Grammar. Mouton, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.