David Powell

David Powell has contributed:
To the English version of the encyclopaedia (3 articles)
To the Spanish version of the encyclopaedia (3 articles)
To the French version of the encyclopaedia (3 articles)

English version

Canada (Written by)
Benjamin Pollock (Written by)
William West (Written by)

French version

Canada (Written by)
Benjamin Pollock (Written by)
William West (Written by)

Spanish version

Canadá (Written by)
Benjamin Pollock (Written by)
William West (Written by)