Gaya APA

BAILY, P., FARMER, D. (2022). PROCUREMENT PRINCIPLES AND MANAGEMENT IN THE DIGITAL AGE (TWELFTH EDITION). United Kingdom: PEARSON PRENTICE HALL.

Gaya MLA

BAILY, Peter., FARMER, David. "PROCUREMENT PRINCIPLES AND MANAGEMENT IN THE DIGITAL AGE". TWELFTH EDITION United Kingdom: PEARSON PRENTICE HALL, 2022. Text.