Synchronicity Princeton/Bollingen Paperbacks Ser. by C. G. Jung; Gerhard Adler (Editor); R. F. C. Hull (Translator) Copyright Year: 1973 ISBN-13: 9780691017945 Available format(s): Classic Audio Log in to read What's an Audio Format Audio format refers to the way an audiobook is recorded. Not all audiobooks have the same formats. Classic Audio: A human reading an audiobook without the text displayed. VOICEtext (H): Human narrator with text that you can follow along with as it reads. VOICEtext (S): Synthetic voice with text you can follow along with as it reads.