Neilson, N. P., & Van Hagen, W. (1929). Manual of physical education activities for the elementary schools of the State of California. California State Print. Office.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Neilson, Neils Peter, و Winifred Van Hagen. Manual of Physical Education Activities for the Elementary Schools of the State of California. Sacramento: California State Print. Office, 1929.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Neilson, Neils Peter, و Winifred Van Hagen. Manual of Physical Education Activities for the Elementary Schools of the State of California. California State Print. Office, 1929.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.