REMOVE

1. Vietnam
2. Cambodia
3. Hainan Sheng (China)
4. South China Sea
5. Dufrenoy, fl. 18--, printer …

WHAT

1. General Maps (1)
2. Printed (1)

WHERE

1. China (1)
2. Hainan Sheng (China) (1)
3. Thailand (1)

WHO

1. Challamel, Pierre-Joseph, … (1)
2. Dufour, F., fl. 18--, eng … (1)
3. Dufrenoy, fl. 18--, print … (1)
4. Lassailly, Charles, fl. 1 … (1)

WHEN

1. 1883 (1)