```
https://www.google.co.uk/search?tbm=bks&hl=en&q=isbn%3A0596554141
```
```
/home/marielle/Code/Node/citoid/lib/CitoidRequest.js:17
this.logger = app.logger;
^
TypeError: Cannot read property 'logger' of undefined
at new CitoidRequest (/home/marielle/Code/Node/citoid/lib/CitoidRequest.js:17:19)
at Suite.<anonymous> (/home/marielle/Code/Node/citoid/test/features/errors/export.js:9:11)
at context.describe.context.context (/home/marielle/Code/Node/citoid/node_modules/mocha/lib/interfaces/bdd.js:49:10)
at Object.<anonymous> (/home/marielle/Code/Node/citoid/test/features/errors/export.js:3:1)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at /home/marielle/Code/Node/citoid/node_modules/mocha/lib/mocha.js:192:27
at Array.forEach (native)
at Mocha.loadFiles (/home/marielle/Code/Node/citoid/node_modules/mocha/lib/mocha.js:189:14)
at Mocha.run (/home/marielle/Code/Node/citoid/node_modules/mocha/lib/mocha.js:422:31)
at Object.<anonymous> (/home/marielle/Code/Node/citoid/node_modules/mocha/bin/_mocha:398:16)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:902:3
```