Ahlers, L. A., & Watkins, J. (2018). Here's the answer: What's the question? : Sofia Hultén / editing: Lisa Anette Ahlers, Jonathan Watkins ; publisher: Ikon Gallery Birmingham, Museum Tinguely Basel. Ikon Gallery.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ahlers, Lisa Anette, و Jonathan Watkins. Here's the Answer: What's the Question? : Sofia Hultén / Editing: Lisa Anette Ahlers, Jonathan Watkins ; Publisher: Ikon Gallery Birmingham, Museum Tinguely Basel. Birmingham ; Basel: Ikon Gallery, 2018.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ahlers, Lisa Anette, و Jonathan Watkins. Here's the Answer: What's the Question? : Sofia Hultén / Editing: Lisa Anette Ahlers, Jonathan Watkins ; Publisher: Ikon Gallery Birmingham, Museum Tinguely Basel. Ikon Gallery, 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.