# An evaluation of Chatham Rise phosphorite as a direct-application phosphatic fertilizer

> 1982 doctoral thesis by Alec Donald Mackay at Massey University

**Wikidata**: [Q112082347](https://www.wikidata.org/wiki/Q112082347)  
**Source**: https://4ort.xyz/entity/an-evaluation-of-chatham-rise-phosphorite-as-a-direct-application-phosphatic-fertilizer


## References

1. [Source](http://hdl.handle.net/10179/3446)