APA (7th ed.) Citation

Watanabe, S. (1979). Hallo! how are you? Penguin Group.

Chicago Style (17th ed.) Citation

Watanabe, Shigeo. Hallo! How Are You? London: Penguin Group, 1979.

MLA (9th ed.) Citation

Watanabe, Shigeo. Hallo! How Are You? Penguin Group, 1979.

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