Kromminga, C. G. (1964). The communication of the Gospel through neighboring: A study of the basis and practice of lay witnessing through neighborly relationships. T. Wever.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Kromminga, Carl Gerhard. The Communication of the Gospel Through Neighboring: A Study of the Basis and Practice of Lay Witnessing Through Neighborly Relationships. Franeker, [Netherlands]: T. Wever, 1964.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Kromminga, Carl Gerhard. The Communication of the Gospel Through Neighboring: A Study of the Basis and Practice of Lay Witnessing Through Neighborly Relationships. T. Wever, 1964.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.