APA

Welch S. M., Croft B. a., . (1979). The design of biological monitorin systems for pest management. Wageningen, Netherlands: Centre for Agricultural Publishing and Documentation.

Chicago

Welch S M, Croft B a, . 1979. The design of biological monitorin systems for pest management. Wageningen, Netherlands: Centre for Agricultural Publishing and Documentation.

Harvard

Welch S. M., Croft B. a., . (1979). The design of biological monitorin systems for pest management. Wageningen, Netherlands: Centre for Agricultural Publishing and Documentation.

MLA

Welch S M, Croft B a, . The design of biological monitorin systems for pest management. Wageningen, Netherlands: Centre for Agricultural Publishing and Documentation. 1979.