PT  - JOURNAL ARTICLE
AU  - Johnson, S. W.
TI  - On nitrification
AID  - 10.2475/ajs.s2-47.140.234
DP  - 1869 Mar 01
TA  - American Journal of Science
PG  - 234--242
VI  - s2-47
IP  - 140
4099  - http://www.ajsonline.org/content/s2-47/140/234.short
4100  - http://www.ajsonline.org/content/s2-47/140/234.full
SO  - Am J Sci1869 Mar 01; s2-47