Παραπομπή σε μορφή APA (7η εκδ.)

Sui Pheng, L., & Jia Zheng, S. (2019). Construction Productivity in the Multilayer Subcontracting System: The Case of Singapore (1st ed. 2019.). Springer Singapore : Imprint: Springer. https://doi.org/10.1007/978-981-13-1831-3

Παραπομπή σε μορφή Chicago (17η εκδ.)

Sui Pheng, Low, και Sim Jia Zheng. Construction Productivity in the Multilayer Subcontracting System: The Case of Singapore. 1st ed. 2019. Singapore: Springer Singapore : Imprint: Springer, 2019. https://doi.org/10.1007/978-981-13-1831-3.

Παραπομπή σε μορφή MLA (8th εκδ.)

Sui Pheng, Low, και Sim Jia Zheng. Construction Productivity in the Multilayer Subcontracting System: The Case of Singapore. 1st ed. 2019. Springer Singapore : Imprint: Springer, 2019. https://doi.org/10.1007/978-981-13-1831-3.