Tomkins, W. (1927). Universal Indian sign language of the plains Indians of North America: Together with a simplified method of study, a list of words in most general use, a codification of pictographic symbols of the Sioux and Ojibway; a dictionary of synonyms, a history of sign language, chapters on smoke signaling, use of idioms, etc. W. Tomkins.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Tomkins, William. Universal Indian Sign Language of the Plains Indians of North America: Together with a Simplified Method of Study, a List of Words in Most General Use, a Codification of Pictographic Symbols of the Sioux and Ojibway; a Dictionary of Synonyms, a History of Sign Language, Chapters on Smoke Signaling, Use of Idioms, Etc. San Diego, Calif.: W. Tomkins, 1927.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Tomkins, William. Universal Indian Sign Language of the Plains Indians of North America: Together with a Simplified Method of Study, a List of Words in Most General Use, a Codification of Pictographic Symbols of the Sioux and Ojibway; a Dictionary of Synonyms, a History of Sign Language, Chapters on Smoke Signaling, Use of Idioms, Etc. W. Tomkins, 1927.