Sidhwa, R. S. (1978). Sidhwa's catalogue, Pakistan stamps, errors & varieties, 1947-78. Kermin R. Sidhwa.
Chicago Style (17th ed.) CitationSidhwa, Rustam S. Sidhwa's Catalogue, Pakistan Stamps, Errors & Varieties, 1947-78. Lahore: Kermin R. Sidhwa, 1978.
Cita MLASidhwa, Rustam S. Sidhwa's Catalogue, Pakistan Stamps, Errors & Varieties, 1947-78. Kermin R. Sidhwa, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.