Стиль цитування APA (7-ме видання)

(2019). Checking Out with the Payment Request API A Practical Introduction to the HTML5 Payment Request API using Real-world Examples / by Alex Libby. [electronic resource].

Чикаго стиль цитування (17-те видання)

Checking Out with the Payment Request API A Practical Introduction to the HTML5 Payment Request API Using Real-world Examples / by Alex Libby. [electronic Resource]. 2019.

Стиль цитування MLA (9-ме видання)

Checking Out with the Payment Request API A Practical Introduction to the HTML5 Payment Request API Using Real-world Examples / by Alex Libby. [electronic Resource]. 2019.