A comparison of the humic substances from some volcanic ash soils in New Zealand and Japan

MLA

Kazuhiko Yamamoto, et al. “A Comparison of the Humic Substances from Some Volcanic Ash Soils in New Zealand and Japan.” Soil Science and Plant Nutrition, vol. 35, June 1989, pp. 257–70. EBSCOhost, https://doi.org/10.1080/00380768.1989.10434758.

APA

Kazuhiko Yamamoto, G. Jock Churchman, & Kevin R. Tate. (1989). A comparison of the humic substances from some volcanic ash soils in New Zealand and Japan. Soil Science and Plant Nutrition, 35, 257–270. https://doi.org/10.1080/00380768.1989.10434758

Chicago

Kazuhiko Yamamoto, G. Jock Churchman, and Kevin R. Tate. 1989. “A Comparison of the Humic Substances from Some Volcanic Ash Soils in New Zealand and Japan.” Soil Science and Plant Nutrition 35 (June): 257–70. doi:10.1080/00380768.1989.10434758.