Bakker,Peter, Doorne,Hans Van, Gooskens,vincent, & Wieringa,Nicolien. (1991). Dermatological preparations for the tropics: A formulary of dermatological preparations and backgrounds of choices, production and dispensing. University of Groningen.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Bakker,Peter, Doorne,Hans Van, Gooskens,vincent, و Wieringa,Nicolien. Dermatological Preparations for the Tropics: A Formulary of Dermatological Preparations and Backgrounds of Choices, Production and Dispensing. Netherlands: University of Groningen, 1991.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Bakker,Peter, et al. Dermatological Preparations for the Tropics: A Formulary of Dermatological Preparations and Backgrounds of Choices, Production and Dispensing. University of Groningen, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.