Mathematics of beauty - Math bibliographies - in Harvard style

In-text: (n.d.)

Your Bibliography: 4hotels.co.uk. n.d. [online] Available at: <http://www.4hotels.co.uk/uk/images/england-somerset-bristol.gif> [Accessed 16 January 2015].

In-text: (ECOPOLIS: Model for sustainable cities of the future?, n.d.)

Your Bibliography: Geo Factsheet, n.d. ECOPOLIS: Model for sustainable cities of the future?. Number 218, p.p.1.

In-text: (Pentagon -- from Wolfram MathWorld, n.d.)

Your Bibliography: Mathworld.wolfram.com. n.d. Pentagon -- from Wolfram MathWorld. [online] Available at: <http://mathworld.wolfram.com/Pentagon.html> [Accessed 13 January 2015].

In-text: (Sidcot School to Bristol Airport, 2012)

Your Bibliography: Sidcot School to Bristol Airport. 2012. Sidcot School to Bristol Airport. [online] Available at: <https://www.google.co.uk/maps/dir/Sidcot+School,+Oakridge+Lane,+Avon,+Winscombe+BS25+1PD,+Vereinigtes+Königreich/Bristol+Airport,+Bristol/@51.3667878,-2.7037173,11z/data=!4m13!4m12!1m5!1m1!1s0x48721d8669d57ae9:0x4c5706d6c5d835b5!2m2!1d-2.821166!2d51.313487!1m5!1m1!1s0x48718ea8a8ed263f:0xd844daddcc2849c4!2m2!1d-2.713546!2d51.38363> [Accessed 16 January 2015].

In-text: (Munich travel guide - Wikitravel, n.d.)

Your Bibliography: Wikitravel.org. n.d. Munich travel guide - Wikitravel. [online] Available at: <http://wikitravel.org/en/Munich> [Accessed 13 January 2015].