APA (7th ed.) Citation

Smullyan, R. (1978). What is the name of this book: The riddle of dracoula and other logical puzzles. Penguin Books.

Chicago Style (17th ed.) Citation

Smullyan, Raymond. What Is the Name of This Book: The Riddle of Dracoula and Other Logical Puzzles. London: Penguin Books, 1978.

MLA (8th ed.) Citation

Smullyan, Raymond. What Is the Name of This Book: The Riddle of Dracoula and Other Logical Puzzles. Penguin Books, 1978.

Warning: These citations may not always be 100% accurate.