APA (7th ed.) Citation

Herrero, N. (2019). Esos días azules. Penguin Random House.

Chicago Style (17th ed.) Citation

Herrero, Nieves. Esos Días Azules. Barcelona: Penguin Random House, 2019.

MLA (9th ed.) Citation

Herrero, Nieves. Esos Días Azules. Penguin Random House, 2019.

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