Cita APA (7th ed.)

SpringerLink (Online service), Costa, A., Julian, V., & Novais, P. (2018). Personal assistants: Emerging computational technologies. Springer International Publishing AG. https://doi.org/10.1007/978-3-319-62530-0

Cita Chicago (17th ed.)

SpringerLink (Online service), Angelo Costa, Vicente Julian, i Paulo Novais. Personal Assistants: Emerging Computational Technologies. Cham: Springer International Publishing AG, 2018. https://doi.org/10.1007/978-3-319-62530-0.

Cita MLA (9th ed.)

SpringerLink (Online service), et al. Personal Assistants: Emerging Computational Technologies. Springer International Publishing AG, 2018. https://doi.org/10.1007/978-3-319-62530-0.