APA (7th ed.) Citation

Fukuyama, K., & Fukuyama, Y. (2019). Japan travel guide: Things I wish I knew before going to Japan (Updated + expended [edition].). [Publisher not identified].

Chicago Style (17th ed.) Citation

Fukuyama, Ken, and Yuki Fukuyama. Japan Travel Guide: Things I Wish I Knew Before Going to Japan. Updated + expended [edition]. [Place of publication not identified]: [Publisher not identified], 2019.

MLA (9th ed.) Citation

Fukuyama, Ken, and Yuki Fukuyama. Japan Travel Guide: Things I Wish I Knew Before Going to Japan. Updated + expended [edition]. [Publisher not identified], 2019.

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