Παραπομπή σε μορφή APA (7η εκδ.)

Warr, J., & Trotter, H. (2023). Notes on the comparative economic cost of wood and metal sleepers in India, and cost of treatment. Central Publication Branch, Government of India. [img].

Παραπομπή σε μορφή Chicago (17η εκδ.)

Warr, J.H, και H. Trotter. Notes on the Comparative Economic Cost of Wood and Metal Sleepers in India, and Cost of Treatment. Central Publication Branch, Government of India. [img], 2023.

Παραπομπή σε μορφή MLA (9th εκδ.)

Warr, J.H, και H. Trotter. Notes on the Comparative Economic Cost of Wood and Metal Sleepers in India, and Cost of Treatment. Central Publication Branch, Government of India. [img], 2023.