APA (7th ed.) Citation

Beetsma, J. (1981). De tropen (2. dr., 2. opl.). Gottmer Educatief.

Chicago Style (17th ed.) Citation

Beetsma, J. De Tropen. 2. dr., 2. opl. Haarlem: Gottmer Educatief, 1981.

MLA (9th ed.) Citation

Beetsma, J. De Tropen. 2. dr., 2. opl. Gottmer Educatief, 1981.

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