APA (7e ed.) Bronvermelding

(1981). OBIS sampler developed by Outdoor Biology Instructional Strategies, Lawrence Hall of Science, University of California, Berkeley, California. [kit].

Chicago (17e ed.) Bronvermelding

OBIS Sampler Developed by Outdoor Biology Instructional Strategies, Lawrence Hall of Science, University of California, Berkeley, California. [kit]. 1981.

MLA (9e ed.) Bronvermelding

OBIS Sampler Developed by Outdoor Biology Instructional Strategies, Lawrence Hall of Science, University of California, Berkeley, California. [kit]. 1981.