Haab, A., & Stocker, A. (1966). Lettera 1 / =: Standardbuch guter Gebrauchsschriften = recueil de lettres et caracteres / : a standard book of fine lettering = (6th ed.). Teufen (AR) Schweiz: Arthur Niggli.
Παραπομπή Chicago StyleHaab, Armin, and Alex Stocker. Lettera 1 / =: Standardbuch Guter Gebrauchsschriften = Recueil De Lettres Et Caracteres / : A Standard Book of Fine Lettering =. 6th ed. Teufen (AR) Schweiz: Arthur Niggli, 1966.
Παραπομπή MLAHaab, Armin, and Alex Stocker. Lettera 1 / =: Standardbuch Guter Gebrauchsschriften = Recueil De Lettres Et Caracteres / : A Standard Book of Fine Lettering =. 6th ed. Teufen (AR) Schweiz: Arthur Niggli, 1966.
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