MLA

Nevins, Iris. Varieties of Spanish Marbling : a Handbook of Practical Instruction with Twelve Original Marbled Samples / by Iris Nevins. Bird & Bull Press ;, I. Nevins, 1991. https://collections.library.yale.edu/catalog/16598882.

APA, 6th edition

Nevins, I. (1991). Varieties of Spanish marbling : a handbook of practical instruction with twelve original marbled samples / by Iris Nevins. [Marbled papers (Paper)]. Bird & Bull Press ;, I. Nevins, https://collections.library.yale.edu/catalog/16598882.