Παραπομπή APA

Smullyan, R. M. (1990). What is the name of this book: The riddle of dracula and other logical puzzles. London: Penguin Books.

Παραπομπή Chicago Style

Smullyan, Raymond M. What Is the Name of This Book: The Riddle of Dracula and Other Logical Puzzles. London: Penguin Books, 1990.

Παραπομπή MLA

Smullyan, Raymond M. What Is the Name of This Book: The Riddle of Dracula and Other Logical Puzzles. London: Penguin Books, 1990.

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