Williams, C. C., & Schneider, F. (2016). Measuring the global shadow economy: The prevalence of informal work and labour. Edward Elgar Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWilliams, Colin C., और Friedrich Schneider. Measuring the Global Shadow Economy: The Prevalence of Informal Work and Labour. Cheltenham, UK ; Northampton, MA, USA: Edward Elgar Publishing, 2016.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWilliams, Colin C., और Friedrich Schneider. Measuring the Global Shadow Economy: The Prevalence of Informal Work and Labour. Edward Elgar Publishing, 2016.
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