एपीए उद्धरण

Realpe Rivadeneira, G. R. (2020). Concrete paving blocks abrasion resistance: Ecuadorian standard application and modification.

शिकागो स्टाइल उद्धरण

Realpe Rivadeneira, Guillermo Ricardo. Concrete Paving Blocks Abrasion Resistance: Ecuadorian Standard Application and Modification. 2020.

एमएलए उद्धरण

Realpe Rivadeneira, Guillermo Ricardo. Concrete Paving Blocks Abrasion Resistance: Ecuadorian Standard Application and Modification. 2020.