APA (7th ed.) Citation

Verstappen, H. T. (1973). A geomorphological reconnaissance of Sumatra and adjacent islands (Indonesia). Wolters Noordhoff.

Chicago Style (17th ed.) Citation

Verstappen, H Th. A Geomorphological Reconnaissance of Sumatra and Adjacent Islands (Indonesia). Wolters Noordhoff, 1973.

MLA (8th ed.) Citation

Verstappen, H Th. A Geomorphological Reconnaissance of Sumatra and Adjacent Islands (Indonesia). Wolters Noordhoff, 1973.

Warning: These citations may not always be 100% accurate.